Encyclopedia of Astronomy and Astrophysics

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Databases
Galaxies
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Instrumentation
National Astronomy
Other Resources
Solar System
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Stars
Theory

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2.2m, 1.54m and 1.52m, La Silla
http://www.ls.eso.org/lasilla/Telescopes/2p2T/
Telescopes
National Astronomy
2001 Mars Odyssey
http://mars.jpl.nasa.gov/odyssey/
The NASA Odyssey Mars orbiter aims to map the distribution of chemical elements and minerals in the Martian surface. It will especially look for hydrogen, most likely in the form of water ice, in the shallow subsurface of Mars, as well as monitoring the radiation environment in low Mars orbit.
Solar System Missions
Space Missions
2001 Mars Odyssey
http://mars.jpl.nasa.gov/odyssey/
The NASA Odyssey Mars orbiter aims to map the distribution of chemical elements and minerals in the Martian surface. It will especially look for hydrogen, most likely in the form of water ice, in the shallow subsurface of Mars, as well as monitoring the radiation environment in low Mars orbit.
Planetary Physics
Solar System
3.6m and CAT, La Silla
http://www.ls.eso.org/lasilla/Telescopes/360cat/
Telescopes
National Astronomy
6dF Galaxy Survey
http://msowww.anu.edu.au/~colless/6dF/
The 6dF Galaxy Survey is a redshift and peculiar velocity survey of the southern sky based on the 2MASS and DENIS near-infrared sky surveys.
Astronomical Software
Instrumentation and Observational Techniques
A Basic Primer on Astrophotography
http://www.geocities.com/CapeCanaveral/Lab/6529/primer.html
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
A Brief History of High Energy Astrophysics
http://heasarc.gsfc.nasa.gov/docs/heasarc/headates/heahistory.html
Archaeoastronomy
History and Archaeoastronomy
A Catalogue of Galactic Supernova Remnants
http://www.mrao.cam.ac.uk/surveys/snrs/
Astronomical Software
Instrumentation and Observational Techniques
Stars
A Constellations FAQ
http://www.physics.csbsju.edu/astro/asp/constellation.faq.html
Constellations and Asterisms
Stars
A Deep Photographic Guide to the Constellations
http://www.allthesky.com/constellations/const.html
Deep exposure, highly resolved color photographs of northern constellations showing stars down to twelfth or thirteenth magnitude, with optional overlays of the constellation borders and deep sky objects.
Constellations and Asterisms
Stars
A Global View From Space
http://sdcd.gsfc.nasa.gov/ISTO/dro/global/
This NASA site displays images of the Earth as seen by various satellites. Images may be panned, zoomed, and animated. Requires JavaScript.
Amateur Astronomy, Education and Public Impact
A Global View From Space
http://sdcd.gsfc.nasa.gov/ISTO/dro/global/
This NASA site displays images of the Earth as seen by various satellites. Images may be panned, zoomed, and animated. Requires JavaScript.
Earth Systems Science
Earth
A Hypermedia Tour of the Sun
http://www.lmsal.com/YPOP/Spotlight/Tour/index.html
Sun
A Hypermedia Tour of the Sun
http://www.lmsal.com/YPOP/Spotlight/Tour/index.html
Astronomical Education
Amateur Astronomy, Education and Public Impact
A Knowledgebase for Extragalactic Astronomy and Cosmology
http://nedwww.ipac.caltech.edu/level5/
Aims to bring together in a single gateway site 'original' documents and reviews and/or electronic links to articles of current and lasting interest to cosmologists, particle physicists and extragalactic astronomers.
Cosmology
A Knowledgebase for Extragalactic Astronomy and Cosmology
http://nedwww.ipac.caltech.edu/level5/
Aims to bring together in a single gateway site 'original' documents and reviews and/or electronic links to articles of current and lasting interest to cosmologists, particle physicists and extragalactic astronomers.
Galaxies
A Knowledgebase for Extragalactic Astronomy and Cosmology
http://nedwww.ipac.caltech.edu/level5/
Aims to bring together in a single gateway site 'original' documents and reviews and/or electronic links to articles of current and lasting interest to cosmologists, particle physicists and extragalactic astronomers.
Amateur Astronomy, Education and Public Impact
A Road Map for the Exploration of Neighboring Planetary Systems
http://origins.jpl.nasa.gov/library/exnps/ExNPS.html
NASA's Road Map for the future investigation of extrasolar planetary systems.
Meteors
Solar System
A table of asterisms
http://www.maa.mhn.de/Maps/Const/asterism.html
Constellations and Asterisms
Stars
A Tutorial on Radio Pulsars
http://www.jb.man.ac.uk/~pulsar/Education/Tutorial/tut/tut.html
Notes from a Masters-level lecture course given at Jodrell Bank.
Stars
Aarhus Theoretical Astrophysics Center
http://bigcat.obs.aau.dk/tac-ifa.html
General sites
Theory
AbsoluteAstronomy.com
http://www.absoluteastronomy.com/
Basic information on an extremely wide range of astronomical objects.
Amateur Astronomy, Education and Public Impact
Abundances in Stellar Populations and the Interstellar Medium in Galaxies
http://nedwww.ipac.caltech.edu/level5/Sept01/Pagel2/frames.html
An Annual Reviews article on abundances in the interstellar medium.
Stars
Abundances in Stellar Populations and the Interstellar Medium in Galaxies
http://nedwww.ipac.caltech.edu/level5/Sept01/Pagel2/frames.html
An Annual Reviews article on abundances in the interstellar medium.
Interstellar Medium
Active Galaxies Newsletter
http://www.ast.man.ac.uk/~rb/agn/
The Active Galaxies Newsletter is a monthly electronic publication dedicated to the observation and theory of active galaxies. It is intended to be used to notify others in the field of recently accepted papers, conference proceedings and dissertations, and also contains announcements of jobs and conferences.
Active Galaxies, Quasars and Galactic Nuclei
Galaxies
ADC Quick Reference – Basic Data on Galaxy Groups and Clusters
http://adc.gsfc.nasa.gov/adc/quick_ref/ref_clusters.html
Data on specific groups, clusters, and surveys
Groups and Clusters of Galaxies
Galaxies
Advanced Composition Explorer (ACE)
http://www.srl.caltech.edu/ACE/
This NASA satellite samples low-energy particles of solar origin and high-energy galactic particles. Orbiting at the L1 point, ACE provides near-real-time solar wind information over short time periods, and advance warning of geomagnetic storms.
Solar Heliosphere and Cosmic Rays
Sun
All-Sky Milky Way Panorama
http://home.arcor-online.de/axel.mellinger/
Amateur Astronomy, Education and Public Impact
All-Sky Milky Way Panorama
http://home.arcor-online.de/axel.mellinger/
Milky Way Galaxy
Galaxies
Alta Vista - astronomy
http://www.altavista.com/cgi-bin/query?pg=q&what=web&q=astronomy
General search Engines
Alta Vista - astrophysics
http://www.altavista.com/cgi-bin/query?sc=on&hl=on&q=astrophysics&kl=XX&pg=q
General search Engines
AltaVista – The Search Company
http://www.altavista.com/
Amateur Astronomy, Education and Public Impact
Amateur Radio Astronomy Resources
http://www.radiosky.com/
Resources for amateur radio astronomers, teachers and students. Much practical information and advice for the amateur on how to go about observing Jupiter or the Sun in radio waves.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
American Association of Variable Star Observers: AAVSO
http://www.aavso.org/
A non-profit worldwide scientific and educational organization of amateur and professional astronomers.
Stars
American Astronomical Society
http://www.aas.org/
Specific institutions and organisations
National Astronomy
American Astronomical Society Education Office
http://www.aas.org/education/index1.html
Education
National Astronomy
American Astronomical Society Education Office
http://www.aas.org/education/
Astronomical Education
Amateur Astronomy, Education and Public Impact
American Geophysical Union (AGU)
http://www.agu.org/
A nonprofit scientific organization, open to those professionally engaged in or associated with the Earth and space sciences. Membership currently exceeds 35,000, of which about 20% are students.
Geophysics
Earth
An Astronomy HyperText Book
http://zebu.uoregon.edu/text.html
Covers a variety of topics such as cosmology, the interstellar medium, stellar evolution, and more. Includes images, movies and commentary.
Astronomical Education
Amateur Astronomy, Education and Public Impact
An Atlas of the Universe
http://anzwers.org/free/universe/
Maps of the universe at a variety of scales, beginning with the nearest stars, then expanding out to finally reach the scale of the entire visible universe.
Astronomical Education
Amateur Astronomy, Education and Public Impact
An Interstellar Medium Tutorial
http://casswww.ucsd.edu/public/tutorial/ISM.html
Interstellar Medium
An Introduction to Active Galactic Nuclei
http://nedwww.ipac.caltech.edu/level5/Cambridge/frames.html
The first chapter from Peterson's "An Introduction to Active Galactic Nuclei".
Active Galaxies, Quasars and Galactic Nuclei
Galaxies
An Introduction to Cosmology
http://nedwww.ipac.caltech.edu/level5/Narlikar2/frames.html
The first chapter from Narlikar's "An Introduction to Cosmology".
Cosmological Models and Concepts
Cosmology
Analemma
http://www.analemma.com/
This site explains the origin of the Sun's analemma, or apparent motion in the sky, using animations and images.
Co-ordinates, Time and Motion
Ancient astronomy
http://www.jqjacobs.net/astro/index.html
Specific sites
History and Archaeoastronomy
Ancient Greek Astronomy
http://metalab.unc.edu/expo/vatican.exhibit/exhibit/d-mathematics/Greek_astro.html
Specific sites
History and Archaeoastronomy
Andrew Hamilton's list of sites for cosmology and relativity
http://casasrv.colorado.edu/~ajsh/cosmology.html
General Sites
Cosmology
Anglo-Australian Observatory
http://www.aao.gov.au/
Australia
National Astronomy
Anglo-Australian Observatory
http://www.aao.gov.au/
The AAO operates the Anglo-Australian and UK Schmidt telescopes on behalf of the astronomical communities of Australia and the UK.
Astronomical Instrumentation
Instrumentation and Observational Techniques
Anglo-Australian Observatory Image Gallery
http://www.aao.gov.au/images/
Amateur Astronomy, Education and Public Impact
Annual Reports of Observatories
http://www.eso.org/gen-fac/libraries/reports.html
An alphabetical list of those observatories that are known to publish annual reports. If available, hyperlinks to electronic versions are provided.
Astronomical Instrumentation
Instrumentation and Observational Techniques
Annual Reviews in Astronomy and Astrophysics
http://astro.AnnualReviews.org/
Astronomical Publications
Apollo Lunar Surface Journal
http://www.hq.nasa.gov/alsj/
Detailed information on every Apollo lunar mission.
Planetary Physics
Solar System
Arecibo Observatory
http://www.naic.edu/
The Arecibo Observatory in Puerto Rico is part of the National Astronomy and Ionosphere Center (NAIC), a national research center operated by Cornell University under a cooperative agreement with the National Science Foundation (NSF). At 305 meters in diameter it is the world's largest single-dish radio telescope.
Astronomical Instrumentation
Instrumentation and Observational Techniques
Ask a High-Energy Astronomer
http://imagine.gsfc.nasa.gov/docs/ask_astro/ask_an_astronomer.html
Deals with the X-ray, gamma-ray and cosmic ray universe, and covers topics such as black holes, quasars and dark matter.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Ask a Space Scientist
http://image.gsfc.nasa.gov/poetry/ask/askmag.html
A NASA scientist answers astronomy and space science questions from the general public.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Ask The Scientists
http://orpheus.nascom.nasa.gov/~kucera/ask_the_scientists.html
A list of ask-the-scientist resources and FAQs.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Association for Astronomy Education
http://www.aae.org.uk/
The AAE promotes public education in astronomy and supports the teaching of astronomy to students at all levels of education.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Asteroid and Comet Impact Hazards
http://impact.arc.nasa.gov/
Planets and Satellites
Solar System
Astrobiology - The Living Universe
http://library.thinkquest.org/C003763/
An educational resource for astrobiology, featuring information and interviews on exobiology, planetary biology, the origins of life and human spaceflight. Also available in PDF format.
Earth
Astrobiology at NASA
http://astrobiology.arc.nasa.gov/
Earth
Astrobiology Central
http://www.angelfire.com/on2/daviddarling/
News, FAQs and a glossary of astrobiological terms.
Earth
Astrobiology Magazine
http://www.astrobio.net/
News, image galleries and discussions forums. Also features an interesting series of debates between scientists on various astrobiological questions.
Earth
Astrocat Catalogues
http://cadcwww.dao.nrc.ca/astrocat
General sites
Stars
Astrodigital
http://www.astrodigital.org/
A collection of educational web sites whose subjects are Mars, space exploration, astronomy, and computing.
Astronomical Education
Amateur Astronomy, Education and Public Impact
AstroGLU
http://simbad.u-strasbg.fr/glu/cgi-bin/astroglu.pl
Databases
Astromart
http://www.astromart.com/
Links to equipment resources for amateur astronomers, and discussion forums on various aspects of observing.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
Astronomer's Bazaar
http://cdsweb.u-strasbg.fr/Cats.html
Databases
Astronomical and astrophysical educational resources Virtual Library Index
http://www.astroweb.com.ar
Education
National Astronomy
Astronomical Archives
http://www.starlink.rl.ac.uk/~acc/archives/archives.html
Databases
Astronomical Archives List
http://www.starlink.rl.ac.uk/~acc/archives/archives.html
Amateur Astronomy, Education and Public Impact
Astronomical Data Center
http://adc.gsfc.nasa.gov/
Databases
Astronomical Glossary
http://nedwww.ipac.caltech.edu/level5/Glossary/frames.html
Astronomical Education
Amateur Astronomy, Education and Public Impact
Astronomical Image Library
http://www.syz.com/images/
Image Sites
Astronomical Image Library
http://www.astronomy.ca/images/
A specialized search engine for astronomical images.
Amateur Astronomy, Education and Public Impact
Astronomical Images Over the Web
http://tdc-www.harvard.edu/astro.image.html
A list of online servers providing astronomical images.
Amateur Astronomy, Education and Public Impact
Astronomical Journal
http://www.journals.uchicago.edu/AJ/
Astronomical Publications
Astronomical League
http://www.astroleague.org/
The Astronomical League is composed of over two hundred and forty local amateur astronomical societies from all across the United States.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
Astronomical Links at University College London
http://www.star.ucl.ac.uk/astro_info.html
Amateur Astronomy, Education and Public Impact
Astronomical Newsletters List
http://sesame.stsci.edu/lib/NEWSLETTER.htm
A list of free newsletters of interest to the astronomical community.
Amateur Astronomy, Education and Public Impact
Astronomical Pictures and Animations
http://graffiti.u-bordeaux.fr/MAPBX/roussel/astro.english.html
Includes the Space Movie Archive, containing several thousand movies.
Amateur Astronomy, Education and Public Impact
Astronomical Society of the Pacific: The Universe in the Classroom
http://www.astrosociety.org/education/publications/tnl/tnl.html
An electronic educational newsletter for teachers, youth group leaders, librarians, and anybody else who wants to help children of all ages learn more about the wonders of the universe.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Astronomical Tests of the Cold Dark Matter Scenario
http://nedwww.ipac.caltech.edu/level5/Sept01/Ostriker/frames.html
An Annual Reviews article on the cold dark matter scenario.
Cosmology
Astronomical Times
http://www.gb.nrao.edu/~rfisher/Ephemerides/times.html
Positional Concepts
Co-ordinates, Time and Motion
Astronomy
http://www.kalmbach.com/astro/
Astronomical Publications
Astronomy & Geophysics
http://www.blackwell-science.com/~cgilib/jnlpage.bin?Journal=aag&File=aag&Page=aims
Astronomical Publications
Astronomy and Astrophysics
http://link.springer.de/link/service/journals/00230/index.htm
Astronomical Publications
Astronomy and Astrophysics Supplement
http://www.ed-phys.fr/aas/
Astronomical Publications
Astronomy and Astrophysics Virtual Library
http://webhead.com/WWWVL/Astronomy/astro-old.html
General search Engines
Astronomy Course Notes
http://physics.gmu.edu/classinfo/astr103/cornt103.html
An introductory, college-level course, including a glossary of astronomical terms, from George Mason University.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Astronomy Education and Outreach at the University of California, San Diego
http://casswww.ucsd.edu/public/astroed.html
Illustrated introductions on a wide variety of topics, such as the big bang, black holes and general relativity, dark matter, gravitational lenses and more.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Astronomy Net
http://www.astronomy.net/
News, articles and discussions forums on a variety of astronomical topics. Also includes an image gallery and links to astronomy clubs and associations.
Amateur Astronomy, Education and Public Impact
Astronomy Notes
http://www.astronomynotes.com/
Introductory astronomy notes on a variety of topics.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Astronomy Now
http://www.astronomynow.com/
Astronomical Publications
Astronomy Picture of the Day
http://antwrp.gsfc.nasa.gov/apod/astropix.html
Each day a different image of the universe is featured, along with a brief explanation written by a professional astronomer.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Astronomy Picture of the Day
http://antwrp.gsfc.nasa.gov/apod/astropix.html
Each day a different image of the universe is featured, along with a brief explanation written by a professional astronomer.
Amateur Astronomy, Education and Public Impact
Astronomy Sight
http://www.astronomysight.com/
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
Astronomy Today
http://www.astronomytoday.com/
An interesting collection of introductory articles on astronomy, cosmology, space science, space exploration. Also features a monthly sky guide detailing the planets, moon and stars, as well as a series of interviews with amateur astronomers.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
Astronomy.com
http://www.astronomy.com/
The website of Astronomy magazine, featuring astronomical news and image galleries, as well as educational and observational information.
Amateur Astronomy, Education and Public Impact
AstronomyDaily.com
http://www.astronomydaily.com/
Provides information on night-sky observing customized according to location. Data include moon phase and position, sunrise and set times, planetary positions, meteor showers, messier objects, and also weather conditions, if available. Site also features information on telescopes, and general astronomy news.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
Astrophysical Journal
http://www.journals.uchicago.edu/ApJ/
Astronomical Publications
Astrophysics Multi-spectral Archive
http://amase.gsfc.nasa.gov/amase/WelcomeToAMASE.html
Databases
AstroWeb
http://www.cv.nrao.edu/fits/www/astronomy.html
General search Engines
AstroWeb
http://www.cv.nrao.edu/fits/www/astronomy.html
A collection of pointers to astronomy-related information available on the Internet.
Amateur Astronomy, Education and Public Impact
AstroWeb Astronomical Images Links
http://www.cv.nrao.edu/fits/www/yp_pictures.html
Amateur Astronomy, Education and Public Impact
AstroWeb Astronomical Societies Links
http://www.cv.nrao.edu/fits/www/yp_society.html
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
Atacama Large Millimeter Array (ALMA)
http://colobus.aoc.nrao.edu/
A USA-Europe collaboration to construct the largest and most sensitive instrument in the world at millimeter and submillimeter wavelengths.
Astronomical Instrumentation
Instrumentation and Observational Techniques
Atacama Large Millimetres Array ALMA,
http://www.eso.org/projects/alma/
Telescopes
National Astronomy
Atacama Pathfinder Experiment (APEX)
http://www.mpifr-bonn.mpg.de/div/mm/apex.html
The 12 meter APEX telescope will be located in the Atacama desert, Chile, and will serve as a pathfinder for the Atacama Large Millimeter Array (ALMA).
Astronomical Instrumentation
Instrumentation and Observational Techniques
Atmospheric Chemistry and Physics - An Interactive Scientific Journal
http://www.copernicus.org/EGS/acp/
A scientific journal dedicated to the publication and discussion of high quality studies investigating the Earth's atmosphere and the underlying chemical and physical processes. An "interactive "journal with an innovative online discussion / peer review process.
Earth's Atmosphere
Earth
Atmospheric Science Division at Rutherford Appleton Laboratory
http://www.ssd.rl.ac.uk/ssd/sn.html
Earth's Atmosphere
Earth
Australia Telescope National Facility
http://www.atnf.csiro.au/
Operates the Australia Telescope, a set of eight individual radio telescopes, as a national research facility for use by Australian and international researchers.
Astronomical Instrumentation
Instrumentation and Observational Techniques
Australia Telescope National Facility
http://www.atnf.csiro.au/
Australia
National Astronomy
Australian National University, Astrophysical Theory Centre
http://wwwmaths.anu.edu.au/atc/
Australia
National Astronomy
Automated telescopes list
http://www.eia.brad.ac.uk/rti/automated.html
Other Resources
astronomylinks.com
http://astronomylinks.com/
Amateur Astronomy, Education and Public Impact
BAA Campaign for Dark Skies
http://www.dark-skies.org
Public Impact
National Astronomy
BAA Campaign for Dark Skies
http://www.dark-skies.org/main.shtm
Public Impact of Astronomy
Amateur Astronomy, Education and Public Impact
Bad Astronomy
http://www.badastronomy.com/
Explaining astronomy through an analysis of the frequent misconceptions found in film, television, and news reports.
Amateur Astronomy, Education and Public Impact
Baryonic Dark Matter
http://nedwww.ipac.caltech.edu/level5/Sept01/Carr/frames.html
An Annual Reviews article on baryonic dark matter.
Cosmology
BBC Interactive Space Homepage
http://www.bbc.co.uk/science/space/
Amateur Astronomy, Education and Public Impact
BBC News Science and Technology
http://news.bbc.co.uk/1/hi/sci/tech/default.stm
Amateur Astronomy, Education and Public Impact
Beams and Jets in Astrophysics
http://nedwww.ipac.caltech.edu/level5/Sept01/Wiita/frames.html
A chapter from Hughes' "Beams and Jets in Astrophysics" on central engine models for AGN.
Active Galaxies, Quasars and Galactic Nuclei
Galaxies
Berkeley Illinois Maryland Association (BIMA)
http://bima.astro.umd.edu/home.html
A consortium of universities operating a millimeter-wave radio interferometer at Hat Creek, California.
Astronomical Instrumentation
Instrumentation and Observational Techniques
Big Bear ground-based images
http://www.bbso.njit.edu/images.html
Image Sites
Big Bear movies
http://www.bbso.njit.edu/movies.html
Image Sites
Big Bear Solar Observatory
http://www.bbso.njit.edu/
Astronomical Instrumentation
Instrumentation and Observational Techniques
Big Bear Solar Observatory
http://www.bbso.njit.edu/
Solar Observation
Sun
Big Bear Solar Observatory Images
http://www.bbso.njit.edu/images.html
Amateur Astronomy, Education and Public Impact
Big Bear Solar Observatory Movies
http://www.bbso.njit.edu/movies.html
Amateur Astronomy, Education and Public Impact
Black Hole Models for Active Galactic Nuclei
http://nedwww.ipac.caltech.edu/level5/March01/Rees/frames.html
An Annual Reviews article on Active Galactic Nuclei.
Active Galaxies, Quasars and Galactic Nuclei
Galaxies
Bologna Astronomical Museum
http://boas3.bo.astro.it/dip/Museum/MuseumHome.html
Specific sites
History and Archaeoastronomy
Bright Supernovae
http://www.rochesterastronomy.org/snimages/
News, images and information on recent supernovae, plus an extensive supernovae links page.
Stars
British Astronomical Association
http://www.britastro.org/
A national organization, founded in 1890, which encourages amateur astronomy through meetings, sectional groups and publications.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
British Astronomical Association
http://www.ast.cam.ac.uk/~baa/
Amateur astronomy
National Astronomy
British Geological Survey
http://www.bgs.ac.uk/
Solar System
Solar System
British National Space Centre
http://www.bnsc.gov.uk
Specific institutions and organisations
National Astronomy
CADC's Digitised Sky Survey
http://cadcwww.dao.nrc.ca/cadcbin/getdss
Astronomical Surveys
Astronomical Surveys
Calendar Studies
http://serendipity.magnet.ch/hermetic/cal_stud.htm
Discussions of a variety of calendar systems, including Julian, Gregorian, and Mayan.
Co-ordinates, Time and Motion
California & Carnegie Planet Search
http://exoplanets.org/
Meteors
Solar System
Caltech Space Radiation Laboratory
http://www.srl.caltech.edu/
Solar Heliosphere and Cosmic Rays
Sun
Caltech Submillimeter Observatory (CSO)
http://www.submm.caltech.edu/cso/
The Caltech Submillimeter Observatory (CSO) consists of a 10.4 meter diameter Leighton radio dish situated in a compact dome near the summit of Mauna Kea.
Astronomical Instrumentation
Instrumentation and Observational Techniques
Caltech Theoretical Astrophysics and Relativity Group
http://www.its.caltech.edu/~esp/tapir
General sites
Theory
Cambridge Astronomical Survey Unit
http://www.ast.cam.ac.uk/~mike/casu/index.html
Astronomical Surveys
Astronomical Surveys
Cambridge Cosmology Public Home Page
http://www.damtp.cam.ac.uk/user/gr/public/cos_home.html
Public-level information on cosmology and relativity from the Cambridge Relativity and Gravitation group. Includes movies and images.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Canadian Astronomy Data Centre
http://cadcwww.dao.nrc.ca/
Databases
Canadian Institute of Theoretical Astrophysics
http://www.cita.utoronto.ca
General sites
Theory
Canadian Space Agency
http://www.space.gc.ca/
Specific institutions and organisations
National Astronomy
Catalogue of the Scientific Community of the 16th and 17th centuries
http://es.rice.edu:80/ES/humsoc/Galileo/Catalog/catalog.html
Biographies
History and Archaeoastronomy
CBS News Space Links
http://www.cbs.com/network/news/space/spacesites.html
General Sites
Space Missions
CBS News Space Place
http://www.cbsnews.com/stories/2000/02/16/tech/main161238.shtml
Amateur Astronomy, Education and Public Impact
Celestial Mechanics and Dynamical Astronomy (requires cookies)
http://www.kluweronline.com/issn/0923-2958
Publishes papers on the mathematical, physical and computational aspects of planetary and lunar theory, general and special perturbation theory, ephemerides, resonance theory, geodesy of the Earth and the planets, the n-body problem, space mechanics, ring systems, galactic dynamics, etc.
Solar System Models and Concepts
Solar System
Center for Archaeoastronomy
http://www.wam.umd.edu/~tlaloc/archastro/index.html
Specific sites
History and Archaeoastronomy
Center for Earth and Planetary Studies (CEPS)
http://www.nasm.si.edu/ceps/
Planetary Physics
Solar System
Center for Earth and Planetary Studies (CEPS)
http://www.nasm.si.edu/ceps/
Amateur Astronomy, Education and Public Impact
Central Laboratory of the Research Councils CLRC
http://www.cclrc.ac.uk/
Institutions and Organisations
National Astronomy
Centre for Atmospheric Science, University of Cambridge
http://www.atm.ch.cam.ac.uk/
Earth's Atmosphere
Earth
Centre National d'Etudes Spatiales
http://www.cnes.fr/WEB_UK/index.htm
Specific institutions and organisations
National Astronomy
Centre National d'Etudes Spatiales (CNES)
http://www.cnes.fr/WEB_UK/index_v3.htm
The French Space Agency.
Earth Systems Science
Earth
Centro Astron�mico Hispano Alem�n
http://www.caha.es/
The German-Spanish Astronomical Center is located on Calar Alto near Almeria in Andalusia. It has 3, 2, and 1 meter telescopes, as well as a Schmidt telescope. The German headquarters are at MPIA Heidelburg.
Astronomical Instrumentation
Instrumentation and Observational Techniques
Cerro Tololo Inter-American Observatory (CTIO)
http://www.ctio.noao.edu/
Located 80km east of La Serena, Chile. On site are several optical telescopes, and one radio telescope.
Astronomical Instrumentation
Instrumentation and Observational Techniques
Challenger Center for Space Science Education
http://www.challenger.org/
Astronomical Education
Amateur Astronomy, Education and Public Impact
Chandra Educational Materials
http://chandra.harvard.edu/edu/
Educational resources related to the Chandra X-ray satellite.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Chungnam National University, Dept. of astronomy and space science,
http://astro1.chungnam.ac.kr/
Korea
National Astronomy
Clusters and Superclusters of Galaxies
http://nedwww.ipac.caltech.edu/level5/Sept01/Bahcall2/frames.html
A review of the optical and X-ray properties of clusters, and their implications for dark matter and cosmology.
Groups and Clusters of Galaxies
Galaxies
College Level Astronomy Courses
http://home.eckerd.edu/~hudsonrl/chn/sitescol.html
A set of links to over one hundred different college-level astronomy courses, mostly at the 'beginner' level.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Comet Images
http://www.allthesky.com/comets/comets.html
Asteroids
Solar System
Comet Information from the International Comet Quarterly (ICQ)
http://cfa-www.harvard.edu/icq/icq.html
A resource for news, observations, orbital data, designations and names regarding comets and related topics.
Asteroids
Solar System
Comet Observation Home Page
http://encke.jpl.nasa.gov/
Recent news and information on comet observations, as well as an archive of past comet images.
Asteroids
Solar System
Comets and Meteor Showers
http://comets.amsmeteors.org/
Features memorable comets of the past, as well as image archives and descriptions of currently visible comets. Also includes a meteor observing calendar.
Asteroids
Solar System
Comets and Meteor Showers
http://comets.amsmeteors.org/
Features memorable comets of the past, as well as image archives and descriptions of currently visible comets. Also includes a meteor observing calendar.
Comets
Solar System
Compton Gamma Ray Observatory (CGRO) Science Support Centre
http://cossc.gsfc.nasa.gov/cossc/cossc.html
The Compton Gamma Ray Observatory was the second of NASA's Great Observatories. Orbiting from 1991 to 2000, it was sensitive over a wide spectral range from 30 keV to 30 GeV.
Astronomical Instrumentation
Instrumentation and Observational Techniques
Constellation-X
http://constellation.gsfc.nasa.gov/
The Constellation-X mission is a key element in NASA's Structure and Evolution of the Universe theme. The observatory will be formed from several (currently four) X-ray satellites orbiting in close proximity that will work together to synthesize a much larger aperture.
Astronomical Instrumentation
Instrumentation and Observational Techniques
CONTOUR: Comet Nucleus Tour
http://www.contour2002.org/
A NASA Discovery mission to perform close (100 km) fly-bys of two comets. The instruments will consist of a wide-angle imager, a high-resolution imager and spectral mapper, a dust analyzer and a mass spectrometer.
Asteroids
Solar System
Cooling Flows in Clusters of Galaxies
http://nedwww.ipac.caltech.edu/level5/Fabian3/frames.html
An Annual Reviews article on cooling flows in clusters of galaxies.
Groups and Clusters of Galaxies
Galaxies
Core Collapse Supernovae
http://csep10.phys.utk.edu/guidry/supernova95/super-root.html
The mechanism for core-collapse (type-II) supernovae is reviewed, with particular emphasis on recent developments concerning convective effects and a more correct treatment of neutrino transport.
Stars
Cosmic and Heliospheric Learning Center
http://helios.gsfc.nasa.gov/
Astronomical Education
Amateur Astronomy, Education and Public Impact
Cosmic Background Explorer (COBE) Homepage
http://space.gsfc.nasa.gov/astro/cobe/
Cosmology
Cosmiverse – The Space Portal
http://www.cosmiverse.com/
Amateur Astronomy, Education and Public Impact
Cosmological Applications of Gravitational Lensing
http://nedwww.ipac.caltech.edu/level5/Blandford/frames.html
An Annual Reviews article on gravitational lensing.
Cosmological Phenomena
Cosmology
Cosmology – from Eric Weisstein's World of Physics
http://scienceworld.wolfram.com/physics/Cosmology.html
An extensively cross-linked guide to the mathematics of cosmological models.
Cosmological Models and Concepts
Cosmology
Cosmology Links
http://casa.colorado.edu/~ajsh/cosmology.html
Cosmology
Cosmology Links
http://casa.colorado.edu/~ajsh/cosmology.html
Amateur Astronomy, Education and Public Impact
Cosmology Models
http://www.cosmologymodels.com/
An informative introduction to modern cosmology.
Cosmological Models and Concepts
Cosmology
Cosmology Models
http://www.cosmologymodels.com/
An informative introduction to modern cosmology.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Cosmology: A Research Briefing
http://www.nap.edu/readingroom/books/cosmology/content.html
The research briefing format is intended to provide advice to program managers and policy makers on the opportunities for scientific advances in a frontier field. This document provides an overview of the status and directions of current-day cosmology.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Cosmology: A Research Briefing
http://www.nap.edu/readingroom/books/cosmology/content.html
The research briefing format is intended to provide advice to program managers and policy makers on the opportunities for scientific advances in a frontier field. This document provides an overview of the status and directions of current-day cosmology.
Cosmological Models and Concepts
Cosmology
COSMOS – The UK National Cosmology Supercomputer
http://www.damtp.cam.ac.uk/user/gr/cosmos/
Cosmology
Cosmos in a Computer
http://archive.ncsa.uiuc.edu/Cyberia/Cosmos/CosmosCompHome.html
A multimedia presentation on cosmology.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Current Solar Images
http://umbra.nascom.nasa.gov/images/latest.html
Up-to-date images of the Sun in a variety of wavelengths.
Solar Observation
Sun
Current Solar Images
http://umbra.nascom.nasa.gov/images/latest.html
Up-to-date images of the Sun in a variety of wavelengths.
Amateur Astronomy, Education and Public Impact
Dark Matter and Structure Formation
http://nedwww.ipac.caltech.edu/level5/Primack/frames.html
A review by Primack.
Cosmological Models and Concepts
Cosmology
Dark Matter and Structure Formation
http://nedwww.ipac.caltech.edu/level5/Primack/frames.html
A review by Primack.
Cosmology
Darwin Space Infrared Interferometer
http://sci.esa.int/home/darwin/
Darwin is an ESA infrared space interferometer mission, launching in 2015 or later. It aims to characterize planetary systems orbiting nearby stars, as well as search for signs of life.
Meteors
Solar System
Darwin Space Infrared Interferometer
http://sci.esa.int/home/darwin/
Darwin is an ESA infrared space interferometer mission, launching in 2015 or later. It aims to characterize planetary systems orbiting nearby stars, as well as search for signs of life.
Astronomical Instrumentation
Instrumentation and Observational Techniques
Deep Impact
http://deepimpact.umd.edu/
A NASA fly-by/impactor cometary encounter mission.
Asteroids
Solar System
Digital Archive of Historical Astronomical Pictures
http://www42.pair.com/infolund/bolaget/DAHAP/
Amateur Astronomy, Education and Public Impact
Digital Images of the Sky
http://www.allthesky.com/
High-quality photographs of observatories, eclipses, nebulae, galaxies, the Aurora Borealis and more.
Amateur Astronomy, Education and Public Impact
DIVA (Deutsches Interferometer fur Vielkanalphotometrie und Astrometrie)
http://www.ari.uni-heidelberg.de/diva/
DIVA will measure the parallaxes, positions and proper motions of more than 500,000 stars down to V = 15, with an accuracy of 0.2 milliarcsec at V = 10. Broad-band photometry of all stars of the DIVA survey and spectrophotometry of all stars brighter than V = 13.3 will be provided. Additionally, it will perform a photometric survey in two channels in the UV between 300 and 400 nm to a limiting magnitude of about V = 14.
Astrometry
Co-ordinates, Time and Motion
Documents of Astronomical History
http://www.stcloudstate.edu/~physcrse/astr106/doc.html
Specific sites
History and Archaeoastronomy
Double Star Library at the US Naval Observatory
http://ad.usno.navy.mil/wds/dsl.html
Provides lists of newly discovered systems or orbits, new astrometric or spectroscopic data for known systems, notices of meetings or observing campaigns, and titles of recently published papers, and also an archive of older data.
Binary Stars
Stars
Dutch Open Telescope (DOT)
http://www.fys.ruu.nl/~rutten/dot/
The Dutch Open Telescope (DOT) is an innovative solar telescope located in the Canary Islands. It has an open data policy.
Astronomical Instrumentation
Instrumentation and Observational Techniques
Dutch Open Telescope (DOT)
http://www.fys.ruu.nl/~rutten/dot/
The Dutch Open Telescope (DOT) is an innovative solar telescope located in the Canary Islands. It has an open data policy.
Solar Observation
Sun
Dwarf Tales
http://nedwww.ipac.caltech.edu/dwarf_tales/
An electronic dwarf galaxy newsletter, covering all aspects of dwarf galaxy research, observational as well as theoretical studies; stellar content, ISM, dynamics, formation and evolution.
Galactic Models and Concepts
Galaxies
Earth and Moon Viewer
http://www.fourmilab.ch/earthview/vplanet.html
Displays maps of the Earth or Moon as seen from the Sun, Moon, or above any latitude/longitude position.
Amateur Astronomy, Education and Public Impact
Earth and Planetary Geodynamics, MIT
http://www-geodyn.mit.edu/
A part of the Department of Earth, Atmospheric and Planetary Sciences at MIT.
Planetary Dynamics
Earth
Earth from Space
http://earth.jsc.nasa.gov/
A searchable selection of some of the best images from the NASA Space Shuttle Earth Observations Photography database.
Earth Systems Science
Earth
Earth from Space
http://earth.jsc.nasa.gov/
A searchable selection of some of the best images from the NASA Space Shuttle Earth Observations Photography database.
Amateur Astronomy, Education and Public Impact
Earth Resources Observation Systems (EROS) Data Center
http://edc.usgs.gov/
Featuring a variety of images of the Earth from space.
Amateur Astronomy, Education and Public Impact
Earth Resources Observation Systems (EROS) Data Center
http://edc.usgs.gov/
Featuring a variety of images of the Earth from space.
Earth Systems Science
Earth
Earth Rotation and Equatorial Coordinates
http://www.gb.nrao.edu/~rfisher/Ephemerides/earth_rot.html
Positional Concepts
Co-ordinates, Time and Motion
Earth Science Portal
http://earthsciencesportal.gsfc.nasa.gov/
A searchable links directory and a web crawler search engine that spans all the web-based information of the NASA Goddard Space Flight Center's Earth Sciences Directorate.
Earth
Eclipse Home Page
http://sunearth.gsfc.nasa.gov/eclipse/eclipse.html
The Eclipse Home Page at the NASA/GSFC Sun-Earth Connection Education Forum.
Sun
Eclipsing Binary Stars
http://www.physics.sfasu.edu/astro/binstar.html
Binary Stars
Stars
Electronic Data for Astrometry
http://home.achilles.net/~jtalbot/data/astrometry/
A compendium of databases, surveys, software and sites of relevance to astrometry.
Astrometry
Co-ordinates, Time and Motion
EROS - Experience pour la Recherche d'Objets Sombres
http://eros.in2p3.fr/
Studying dark stellar bodies (brown dwarfs or MACHOs) through their gravitational microlensing effects on stars in the Magellanic Clouds.
Cosmology
ESA
http://www.esa.int/
Specific institutions and organisations
National Astronomy
ESA Cluster Mission
http://sci.esa.int/home/cluster/
An in-situ investigation of the Earth's magnetosphere using four identical spacecraft simultaneously. This permits accurate measurement and discrimination of temporal and spatial phenomena.
Earth's Magnetosphere
Earth
Europa Orbiter Project
http://www.jpl.nasa.gov/europaorbiter/
A potential NASA mission to the Jovian satellite, currently in the early planning stages.
Planetary Physics
Solar System
European Association for Astronomy Education
http://www.algonet.se/~sirius/eaae.htm
The purpose of the Association is to improve and promote astronomical education at all levels in all institutions involved in teaching astronomy in Europe.
Astronomical Education
Amateur Astronomy, Education and Public Impact
European Ozone Research Coordinating Unit
http://www.ozone-sec.ch.cam.ac.uk/
Earth's Atmosphere
Earth
European Southern Observatory
http://www.eso.org/
Specific links
National Astronomy
European Southern Observatory (ESO)
http://www.eso.org/
An intergovernmental, European organization for astronomical research. It has nine member countries. ESO operates astronomical observatories in Chile and has its headquarters in Garching, near Munich, Germany.
Astronomical Instrumentation
Instrumentation and Observational Techniques
Explore Mars
http://www.astrodigital.org/mars/
Home to a variety of articles and data tables about the planet Mars. In addition, the Mars Database of Named Features provides access to basic information on over 1400 named surface features.
Planetary Physics
Solar System
Exploring the Moon
http://cass.jsc.nasa.gov/moon.html
A general introduction to all the lunar missions, manned and unmanned.
Planetary Physics
Solar System
Exploring the Moon
http://cass.jsc.nasa.gov/moon.html
A general introduction to all the lunar missions, manned and unmanned.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Exploring the Planets – an Online Gallery
http://www.nasm.si.edu/ceps/etp/
Exploring The Planets highlights the history and achievements of planetary explorations, both Earth-based and by spacecraft.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Exploring the Planets - an Online Gallery
http://www.nasm.si.edu/ceps/etp/
Exploring The Planets highlights the history and achievements of planetary explorations, both Earth-based and by spacecraft.
Planetary Physics
Solar System
Extrasolar Visions
http://www.extrasolar.net/
Meteors
Solar System
Far Ultraviolet Spectroscopic Explorer (FUSE)
http://fuse.pha.jhu.edu/
A NASA far-UV grating spectrometer satellite. Operating at wavelengths around 1000 Angstroms with a resolution of order 25,000.
Astronomical Instrumentation
Instrumentation and Observational Techniques
Federation of Astronomical Societies
http://www.fedastro.org.uk
Amateur astronomy
National Astronomy
Foundations of Cosmological Thought
http://physics.gmu.edu/classinfo/astr103/CourseNotes/ECText/ectcn103.htm
An extremely broad, college-level introduction to much of astronomy from George Mason University.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Fourmilab
http://www.fourmilab.ch/
A variety of documents, images, software for various machines, and interactive Web resources are available for astronomy and other disciplines. Includes an Earth-Moon viewer, Solar System simulator, orbit plotter, and so on.
Amateur Astronomy, Education and Public Impact
From Stargazers to Starships
http://www.phy6.org/stargaze/Sintro.htm
A good high-school level coverage of the astronomy of the Earth's motion in space.
Positional Concepts
Co-ordinates, Time and Motion
Full-sky Astrometric Mapping Explorer (FAME)
http://www.usno.navy.mil/FAME/
FAME is a small, low-cost survey instrument to determine the positions, proper motions, parallaxes, and photometry of 40 million stars down to 15th visual magnitude, with 50 microarcsec accuracy at 9th visual magnitude.
Astrometry
Co-ordinates, Time and Motion
GAIA - The Galactic Census Project
http://astro.estec.esa.nl/GAIA/gaia.html
The European Space Agency's followup to its Hipparcos astrometry satellite, GAIA will measure the positions of around 1 billion stars in our Galaxy and its nearest neighbors. The survey will be complete down to around V = 20, with 4 microarcsec accuracy at V = 10. In addition, it will obtain multi-color photometry for all stars observed, along with radial velocities for the brighter objects.
Astrometry
Co-ordinates, Time and Motion
Galaxies
http://www.ifa.hawaii.edu/faculty/barnes/ast626/ast626.html
A course discussing the structure, stability, and dynamical evolution of galaxies.
Galactic Models and Concepts
Galaxies
Galaxies
http://www.ifa.hawaii.edu/faculty/barnes/ast626/ast626.html
A course discussing the structure, stability, and dynamical evolution of galaxies.
Galaxy Formation and Evolution
Galaxies
Galaxy
http://www.galaxy.com/
Amateur Astronomy, Education and Public Impact
Galaxy - astronomy
http://www.einet.net/galaxy/Science/Astronomy.html
General search Engines
Galaxy - astrophysics
http://www.einet.net/galaxy/Science/Astronomy/Astrophysics.html
General search Engines
Galaxy Cluster Mug Shots
http://www.astr.ua.edu/white/mug/cluster/
Optical and X-ray images of galaxy clusters.
Groups and Clusters of Galaxies
Galaxies
Galaxy Cluster Mug Shots
http://www.astr.ua.edu/white/mug/cluster/
Optical and X-ray images of galaxy clusters.
Amateur Astronomy, Education and Public Impact
Galaxy Clusters Evolution
http://imagine.gsfc.nasa.gov/docs/features/topics/clusters_group/evolution.html
An educational article on the evolution of galaxy clusters.
Groups and Clusters of Galaxies
Galaxies
Galaxy Clusters Evolution
http://imagine.gsfc.nasa.gov/docs/features/topics/clusters_group/evolution.html
An educational article on the evolution of galaxy clusters.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Galileo Project
http://www.jpl.nasa.gov/galileo/
A NASA mission to Jupiter and the Galilean satellites.
Planetary Physics
Solar System
Gamma-ray Bursts
http://www.mpe.mpg.de/~jcg/grb.html
A collection of information on GRBs, including tables of well-localized bursts, those with optical afterglows and known redshifts, as well as GRB literature and links.
Cosmology
Gamma-Ray Large Area Space Telescope (GLAST)
http://glast.gsfc.nasa.gov/
The main GLAST instrument will be the Large Area Telescope (LAT), an imaging calorimeter with a resolution around an arc minute. There will also be a GLAST Burst Monitor (GBM), with an all-sky field of view in the energy range 10 keV to 25 MeV.
Astronomical Instrumentation
Instrumentation and Observational Techniques
Gazetteer Of Planetary Nomenclature
http://planetarynames.wr.usgs.gov/
Contains detailed information about all names of topographic and albedo features on planets and satellites (and some planetary ring and ring-gap systems) that the International Astronomical Union has named.
Planetary Physics
Solar System
Geophys Astrophys Dyn
http://www.gbhap.com:80/journals/134/134-top.htm
Astronomical Publications
German Aerospace Centre
http://www.fedastro.org.uk
Specific institutions and organisations
National Astronomy
Global Oscillation Network Group (GONG)
http://gong.nso.edu/
The Global Oscillation Network Group (GONG) is a community-based project to conduct a detailed study of solar internal structure and dynamics using helioseismology.
Solar Observation
Sun
Go.com - astronomy
http://www.go.com/Titles?col=WW&qt=astronomy&svx=home_searchbox&sv=IS&lk=noframes
General search Engines
Go.com - astrophysics
http://www.go.com/Titles?col=WW&qt=astrophysics&svx=home_searchbox&sv=IS&lk=noframes
General search Engines
Goddard Space Flight Center
http://www.gsfc.nasa.gov/
Specific institutions and organisations
National Astronomy
Goddard Space Flight Center
http://www.gsfc.nasa.gov/
Earth Systems Science
Earth
Goddard Space Flight Center Education Programs
http://education.gsfc.nasa.gov/
Astronomical Education
Amateur Astronomy, Education and Public Impact
Goddard Spaceflight Center Education
http://education.gsfc.nasa.gov/
Education
National Astronomy
Google Directory – Astronomy
http://directory.google.com/Top/Science/Astronomy/
Amateur Astronomy, Education and Public Impact
Grand Challenge Consortium
http://zeus.ncsa.uiuc.edu/GC3_Home_Page.html
The Grand Challenge Cosmology Consortium is a project devoted to harnessing the power of parallel computers to explore the origin of large scale structure in the universe and how galaxies form. This site includes many images from the output of simulations of cosmic structure formation.
Cosmology
Great debates in astronomy
http://antwrp.gsfc.nasa.gov/diamond_jubilee/debate.html
Specific sites
History and Archaeoastronomy
Great Images in NASA (GRIN)
http://grin.hq.nasa.gov/
A collection of over a thousand images of significant historical interest scanned at high-resolution in several sizes.
Amateur Astronomy, Education and Public Impact
Groups and Clusters of Galaxies
http://www.seds.org/messier/gal_clus.html
An educational page discussing groups and clusters.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Groups and Clusters of Galaxies
http://www.seds.org/messier/gal_clus.html
An educational page discussing groups and clusters.
Groups and Clusters of Galaxies
Galaxies
Guide to Minor Body Astrometry
http://cfa-www.harvard.edu/iau/info/Astrometry.html
An IAU Minor Planet Center guide for those observers interested in undertaking an astrometric CCD-observing program of minor planets and/or comets.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
Guide to Minor Body Astrometry
http://cfa-www.harvard.edu/iau/info/Astrometry.html
An IAU Minor Planet Center guide for those observers interested in undertaking an astrometric CCD-observing program of minor planets and/or comets.
Astrometry
Co-ordinates, Time and Motion
Hallo Northern Sky Planetarium Program
http://www.hnsky.org/software.htm
A free planetarium program for Windows.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
Hartebeesthoek Radio Astronomy Observatory
http://www.puk.ac.za/fskdocs/ras_topE.html
Africa
National Astronomy
Hawaiian Astronomical Deepsky Atlas
http://www.hawastsoc.org/deepsky/index.html
Excellent online atlas of the heavens, featuring photographs of significant objects, and their descriptions, as well as the mythology behind many of the constellations.
Constellations and Asterisms
Stars
Heavens Above
http://www.heavens-above.com/
This site produces location-specific information on the visibility of satellites and the International Space Station, as well as constellation charts and data for the planets, sun and moon.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
High Energy Astrophysics Observatories
http://heasarc.gsfc.nasa.gov/docs/corp/observatories.html
Specific links
National Astronomy
High Energy Astrophysics Picture of the Week
http://heasarc.gsfc.nasa.gov/docs/objects/heapow/heapow.html
Each week new, exciting and beautiful images from X-ray and gamma ray astronomy.
Amateur Astronomy, Education and Public Impact
High Energy Astrophysics Science Archive and Research Center Education and Public Outreach
http://heasarc.gsfc.nasa.gov/docs/corp/outreach.html
Astronomical Education
Amateur Astronomy, Education and Public Impact
High Energy Astrophysics Science Archive Research Center
http://heasarc.gsfc.nasa.gov/
Specific institutions and organisations
National Astronomy
High Redshift Supernova Search
http://www-supernova.lbl.gov/
The Supernova Cosmology Project at Lawrence Berkeley National Laboratory is an attempt to measure the cosmological parameters using supernovae as distance indicators.
Cosmology
High Redshift Supernova Search
http://www-supernova.lbl.gov/
The Supernova Cosmology Project at Lawrence Berkeley National Laboratory is an attempt to measure the cosmological parameters using supernovae as distance indicators.
Amateur Astronomy, Education and Public Impact
Hiraiso Solar Terrestrial Research Center
http://hiraiso.crl.go.jp/
Japan
National Astronomy
Hiraiso Solar Terrestrial Research Center Space Environment Service
http://hiraiso.crl.go.jp/
Earth's Magnetosphere
Earth
Hiraiso Solar Terrestrial Research Center Space Environment Service
http://hiraiso.crl.go.jp/
Solar Activity
Sun
Hiraiso Solar Terrestrial Research Center Space Environment Service
http://hiraiso.crl.go.jp/
Solar Observation
Solar System
Historical Celestial Atlases
http://www.lhl.lib.mo.us/pubserv/hos/stars/welcome2.htm
Specific sites
History and Archaeoastronomy
History of High Energy Astrophysics
http://heasarc.gsfc.nasa.gov:80/docs/heasarc/headates/heahistory.html
Specific sites
History and Archaeoastronomy
How to compute planetary positions
http://hem.passagen.se/pausch/comp/ppcomp.html
A description of how to compute positions for the Sun and Moon and the major planets, as well as comets and minor planets, from a set of orbital elements.
Positional Concepts
Co-ordinates, Time and Motion
Hubble Space Telescope Astrometry Science Team
http://clyde.as.utexas.edu/SpAstNEW/ASTindex.html
Astrometry
Co-ordinates, Time and Motion
Hubble Space Telescope Public Pictures
http://oposite.stsci.edu/pubinfo/pictures.html
Amateur Astronomy, Education and Public Impact
Hubble Space Telescope Public Pictures
http://oposite.stsci.edu/pubinfo/pictures.html
Image Sites
Hyper Physics Astronomy Page
http://hyperphysics.phy-astr.gsu.edu/hbase/astro/astcon.html
Astronomical Education
Amateur Astronomy, Education and Public Impact
IAU Minor Planet Center (MPC)
http://cfa-www.harvard.edu/cfa/ps/mpc.html
The MPC is a nonprofit organization responsible for the efficient collection, (computation,) checking and dissemination of astrometric observations and orbits for minor planets and comets.
Asteroids
Solar System
IAU Minor Planet Center (MPC)
http://cfa-www.harvard.edu/cfa/ps/mpc.html
The MPC is a nonprofit organization responsible for the efficient collection, (computation,) checking and dissemination of astrometric observations and orbits for minor planets and comets.
Planets and Satellites
Solar System
ICARUS, International Journal of Solar System Studies
http://icarus.cornell.edu/
ICARUS is the official publication of the Division for Planetary Sciences of the American Astronomical Society and is dedicated to reporting the results of new research - observational, experimental, or theoretical - on the science of our solar system or extrasolar systems.
Solar System
Solar System
Images of Star Clusters
http://www.allthesky.com/clusters/clusters.html
Stellar Populations and Star Clusters
Stars
Inconstant Moon
http://www.inconstantmoon.com/
Features a 'tour' of the moon for every day of the year, describing the changing appearance of the moon. Also a detailed clickable map of the lunar surface, with many labelled features. Includes a 'cyclopedia Selenica' containing a great variety of lunar information.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
Inconstant Moon
http://www.inconstantmoon.com/
Features a "tour" of the moon for every day of the year, describing the changing appearance of the moon. Also a detailed clickable map of the lunar surface, with many labelled features. Includes a "cyclopedia Selenica" containing a great variety of lunar information.
Planetary Physics
Solar System
Inflation for Astronomers
http://nedwww.ipac.caltech.edu/level5/Narlikar/frames.html
An Annual Reviews article on inflation
Cosmological Models and Concepts
Cosmology
Infrared Astronomy
http://www.ipac.caltech.edu/Outreach/Edu/
A wealth of information on all aspects of infrared radiation: its discovery, place in the electromagnetic spectrum, role in astronomy, instruments used to detect it, and more.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Infrared Processing and Analysis Center Image Gallery
http://www.ipac.caltech.edu/Outreach/Gallery/gallery.html
Images and information about projects that have been and currently are being supported by IPAC.
Amateur Astronomy, Education and Public Impact
Infrared Space Observatory Interstellar Medium Image Gallery
http://www.iso.vilspa.esa.es/galleries/ism.html
Amateur Astronomy, Education and Public Impact
Infrared Space Observatory Interstellar Medium Image Gallery
http://www.iso.vilspa.esa.es/galleries/ism.html
Interstellar Medium
Institute and Museum of the History of Science of Florence
http://galileo.imss.firenze.it/museo/b/index.html
Biographies
History and Archaeoastronomy
Institute for Astronomy, University of Edinburgh
http://www.roe.ac.uk/ifa/
UK
National Astronomy
Institute of Astronomy, Cambridge
http://www.ast.cam.ac.uk/
UK
National Astronomy
Institute of Geophysics and Planetary Phyiscs, UCLA
http://www.igpp.ucla.edu/
Geophysics
Earth
Institute of Space and Astronautical Science
http://www.isas.ac.jp/e/
Specific institutions and organisations
National Astronomy
Institute of Theoretical Astrophysics, Oslo
http://www.astro.uio.no/ita/english.html
General sites
Theory
Institute of Theoretical Physics and Astronomy, Vilnius
http://www.itpa.lt
General sites
Theory
INTERMAGNET
http://www.intermagnet.org/
The International Real-time Magnetic Observatory Network. Data and information from geomagnetic observatories around the world.
Earth's Magnetosphere
Earth
International Astronomical Union
http://www.iau.org/
Specific institutions and organisations
National Astronomy
International Astronomy Meeting List
http://cadcwww.dao.nrc.ca/meetings/
Astronomical Conferences and meetings
International Dark Sky Association
http://www.darksky.org/
Public Impact
National Astronomy
International Dark Sky Association
http://www.darksky.org/
The IDA is a non-profit, membership-based organization, aiming to preserve and protect the nighttime environment and our heritage of dark skies.
Public Impact of Astronomy
Amateur Astronomy, Education and Public Impact
International Earth Rotation Service (IERS)
http://www.iers.org/
Established in 1987 by the International Astronomical Union and the International Union of Geodesy and Geophysics. Defines the celestial and terrestrial reference frames.
Positional Concepts
Co-ordinates, Time and Motion
International Journal of Astrobiology
http://journals.cambridge.org/journal_InternationalJournalofAstrobiology
The International Journal of Astrobiology is a new journal which will act as an important forum for practitioners in this rapidly expanding field.
Earth
International Journal of Solar System Studies
http://icarus.cornell.edu
Astronomical Publications
International Meteor Organization
http://www.imo.net/
A society promoting international cooperation in amateur meteor work.
Comets
Solar System
Interstellar Dust and Extinction
http://nedwww.ipac.caltech.edu/level5/Mathis/frames.html
An Annual Reviews article on interstellar dust and extinction.
Interstellar Medium Models and Concepts
Interstellar Medium
Introduction to Pulsar Astronomy
http://www.jb.man.ac.uk/~pulsar/Education/pulsar_intro.html
An educational page giving an introduction to pulsars. Includes recordings of the sounds made by the brightest pulsars in the sky, obtained using some of the largest radiotelescopes in the world.
Stars
Introduction to Pulsar Astronomy
http://www.jb.man.ac.uk/~pulsar/Education/pulsar_intro.html
An educational page giving an introduction to pulsars. Includes recordings of the sounds made by the brightest pulsars in the sky, obtained using some of the largest radiotelescopes in the world.
Astronomical Education
Amateur Astronomy, Education and Public Impact
J Geophys Res
http://plasma2.ssl.berkeley.edu/jgr/JGR-SpaceInstructions.html
Astronomical Publications
Japanese Starlore and Astronomical History
http://www2.gol.com/users/stever/jastro.html#Astro%20Lore
Specific sites
History and Archaeoastronomy
Java Applet and VRML Resources for Teaching and Learning
http://www.ph.surrey.ac.uk/cti/Gateway/Java_Applets.htm
Links to sites containing Java and Virtual Reality Modelling Language (VRML) applets that cover physics and astronomy topics.
Amateur Astronomy, Education and Public Impact
Jim Kaler's Stars and Constellations
http://www.astro.uiuc.edu/~kaler/sow/sowlist.html
Information on the constellations and their most prominent stars, including labelled photographs.
Constellations and Asterisms
Stars
Joint Australian Centre for Astrophysical Research in Antarctica
http://newt.phys.unsw.edu.au/~mgb/jacara.html
Australia
National Astronomy
JPL Atmospheric Chemistry
http://remus.jpl.nasa.gov/
Earth's Atmosphere
Earth
JPL Solar System Dynamics
http://ssd.jpl.nasa.gov/
Provides information related to all known bodies in orbit around the sun.
Solar System
JPL Solar System Dynamics
http://ssd.jpl.nasa.gov/
Provides information related to all known bodies in orbit around the sun.
Solar System
Solar System
JPL Solar System Dynamics
http://ssd.jpl.nasa.gov/
Provides information related to all known bodies in orbit around the sun.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Kepler Mission
http://www.kepler.arc.nasa.gov/
Kepler is a proposed NASA mission to detect extrasolar planets by monitoring nearby stars for periodic variability indicative of transiting planets.
Meteors
Solar System
Kobe University Astrophysics Laboratory,
http://nova.earth.s.kobe-u.ac.jp/index.html
Japan
National Astronomy
Korea Astronomy Observatory
http://hanul.issa.re.kr/
Korea
National Astronomy
Kuiper Belt Objects
http://www.ifa.hawaii.edu/faculty/jewitt/kb.html
Solar System
Solar System
Kuiper Belt Objects
http://www.ifa.hawaii.edu/faculty/jewitt/kb.html
Solar System
Kyoto University Cosmic-Ray Group
http://www-cr.scphys.kyoto-u.ac.jp/index-e.html
Japan
National Astronomy
Kyoto University Cosmic-Ray Group
http://www-cr.scphys.kyoto-u.ac.jp/index-e.html
Solar Heliosphere and Cosmic Rays
Sun
Kyoto University, Department of Astronomy
http://www.kusastro.kyoto-u.ac.jp/
Japan
National Astronomy
KyungHee Astronomical Observatory
http://khobs.kyunghee.ac.kr/intkhobs.htm
Korea
National Astronomy
La Silla
http://www.ls.eso.org/index.html
Specific links
National Astronomy
La Silla
http://www.ls.eso.org/lasilla/lsu/index.html
Universities
National Astronomy
Laboratory for Atmospheres, Goddard Space Flight Center
http://atmospheres.gsfc.nasa.gov/
A NASA research group studying the atmospheres of the Earth and other planets.
Earth's Atmosphere
Earth
Large-Scale Structure in the Universe Indicated by Galaxy Clusters
http://nedwww.ipac.caltech.edu/level5/Sept01/Bahcall/frames.html
An Annual Reviews article on large-scale structure.
Cosmological Models and Concepts
Cosmology
Large-Scale Structure in the Universe Indicated by Galaxy Clusters
http://nedwww.ipac.caltech.edu/level5/Sept01/Bahcall/frames.html
An Annual Reviews article on large-scale structure.
Groups and Clusters of Galaxies
Galaxies
LASCO Image Gallery
http://sohowww.nascom.nasa.gov/gallery/LASCO/
Images and movies of comets close to the sun from the LASCO (Large Angle and Spectrometric Coronagraph) instrument on board the SOHO satellite.
Asteroids
Solar System
Liftoff to Space Exploration
http://liftoff.msfc.nasa.gov/
A NASA educational page for teenagers and older.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Light Pollution Awareness Website
http://members.aol.com/ctstarwchr/
Public Impact of Astronomy
Amateur Astronomy, Education and Public Impact
Linux Astronomy HOWTO
http://www.tldp.org/HOWTO/Astronomy-HOWTO.html
An index to Linux tools applicable in some fashion to the pursuit of astronomy.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
List of Galaxy Catalogs
http://heasarc.gsfc.nasa.gov/db-perl/W3Browse/w3table.pl?MissionHelp=galaxy_catalog
Information on the details of numerous galaxy catalogs.
Groups and Clusters of Galaxies
Galaxies
List of Supernovae
http://cfa-www.harvard.edu/iau/lists/Supernovae.html
A list of all supernovae discovered since 1885.
Stars
Lunar and Planetary Institute (LPI)
http://www.lpi.usra.edu/
A NASA institute devoted to solar system studies.
Solar System
Lunar and Planetary Institute (LPI)
http://www.lpi.usra.edu/
A NASA institute devoted to solar system studies.
Solar System
Solar System
Lycos - astronomy
http://www.lycos.co.uk/cgi-bin/pursuit?matchmode=and&mtemp=main&etemp=error&query=astronomy&cat=brit
General search Engines
Lycos - astrophysics
http://www.lycos.co.uk/cgi-bin/pursuit?matchmode=and&mtemp=main&etemp=error&query=astrophysics&cat=b
General search Engines
Magnetars, Soft Gamma Repeaters and Very Strong Magnetic Fields
http://solomon.as.utexas.edu/~duncan/magnetar.html
A review of soft gamma repeaters and magnetars.
Stars
Malin Space Science Systems images of Mars
http://www.msss.com/mars_images/index.html
Image Sites
Malin Space Science Systems Mars Images
http://www.msss.com/mars_images/index.html
Martian weather reports and images from the Mars Orbiter Camera on Mars Global Surveyor.
Planetary Physics
Solar System
Malin Space Science Systems Mars Images
http://www.msss.com/mars_images/index.html
Martian weather reports and images from the Mars Orbiter Camera on Mars Global Surveyor.
Amateur Astronomy, Education and Public Impact
MAP Cosmology
http://map.gsfc.nasa.gov/m_uni.html
A detailed overview of modern cosmological theories, concepts and tests from the NASA MAP (Microwave Anisotropy Probe) team.
Astronomical Education
Amateur Astronomy, Education and Public Impact
MAP Cosmology
http://map.gsfc.nasa.gov/m_uni.html
A detailed overview of modern cosmological theories, concepts and tests from the NASA MAP (Microwave Anisotropy Probe) team.
Cosmology
Maps of the Solar System
http://maps.jpl.nasa.gov/
Solar System
Maps of the Solar System
http://maps.jpl.nasa.gov/
Solar System
Solar System
Maps of the Solar System
http://maps.jpl.nasa.gov/
Amateur Astronomy, Education and Public Impact
Maps of the Solar System
http://maps.jpl.nasa.gov/
Amateur Astronomy, Education and Public Impact
Mars Atlases and Image Finders
http://ic-www.arc.nasa.gov/ic/projects/bayes-group/Atlas/Mars/
The 1994 Mars Atlas and Viking Orbiter image finder – the first online atlas of Mars.
Amateur Astronomy, Education and Public Impact
Mars Atlases and Image Finders
http://ic-www.arc.nasa.gov/ic/projects/bayes-group/Atlas/Mars/
The 1994 Mars Atlas and Viking Orbiter image finder - the first online atlas of Mars.
Planetary Physics
Solar System
Mars Exploration
http://mars.jpl.nasa.gov/
The homepage for NASA's Mars missions.
Planetary Physics
Solar System
Mars Global Surveyor
http://mars.jpl.nasa.gov/mgs/
Global Surveyor was a NASA Mars orbiter that carried out studies of the Martian atmosphere, surface features, mineral distribution, and magnetic properties.
Planetary Physics
Solar System
Mars Pathfinder
http://mars.jpl.nasa.gov/MPF/index1.html
Pathfinder was a NASA lander mission. It studied Martian geology and surface morphology, geochemistry and petrology of soils and rocks, magnetic and mechanical properties of the soil as well as a variety of atmospheric investigations; and also deployed a microrover.
Planetary Physics
Solar System
Marshall Space Flight Center list of sites for solar physics
http://wwwssl.msfc.nasa.gov/ssl/pad/solar/default.htm
The Sun
Solar System
Marshall Space Flight Center Solar Physics
http://science.nasa.gov/ssl/pad/solar/default.htm
Features an overview of solar physics as well as information on current and upcoming MSFC projects.
Sun
Maya Astronomy
http://www.michielb.nl/maya/astro.html
Specific sites
History and Archaeoastronomy
MediaTheque
http://cdsweb.u-strasbg.fr/mediatheque/
Other Resources
Messier catalogue
http://seds.lpl.arizona.edu/messier/Messier.html
General Sites
Galaxies
Messier45.com
http://messier45.com/
Provides the deep sky observer's most valuable tools; the map and the lists of objects. Great effort is made to provide as accurate data as possible in the most efficient and most accessible way.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
Meteoritics & Planetary Science - The Journal of the Meteoritical Society
http://www.uark.edu/~meteor/
Publishes on a monthly basis invited reviews surveying major topics in planetary science, research articles describing the results of major new studies, editorials on topics of current interest and book reviews.
Comets
Solar System
Microlensing Planet Search (MPS) Project
http://www.nd.edu/~srhie/MPS/
The Microlensing Planet Search (MPS) Project searches for evidence of extra-solar planets using the gravitational microlensing technique. Photometric microlensing is capable of probing the entire mass range of planets from Super-Jupiter mass to Earth mass.
Meteors
Solar System
Microwave Anisotropy Probe (MAP)
http://map.gsfc.nasa.gov/
The specific goal of MAP is to map the relative CMB temperature over the full sky with an angular resolution of at least 0.3 degrees, a sensitivity of 20 micro-K per 0.3 square-degree pixel, with systematic artifacts limited to 5 micro-K per pixel. MAP will observe from the L2 Sun–Earth Lagrange point, in five separate frequency bands from 22 to 90 GHz.
Cosmology
MIT Center for Space Research Education and Public Outreach Program
http://space.mit.edu/CSR/outreach/
Astronomical Education
Amateur Astronomy, Education and Public Impact
Molecular Clouds in Galaxies
http://nedwww.ipac.caltech.edu/level5/Morris/frames.html
An Annual Reviews article on molecular clouds.
Interstellar Medium Objects
Interstellar Medium
Monthly Notices of the Royal Astronomical Society
http://www.blackwell-science.com/~cgilib/jnlpage.bin?Journal=mnras&File=mnras&Page=aims
Astronomical Publications
Mount Stromlo and Siding Spring Observatories
http://msowww.anu.edu.au/
Australia
National Astronomy
Mount Wilson Solar Observatory
http://www.astro.ucla.edu/~obs/intro.html
Data, images and information from the 150-foot solar tower at Mt. Wilson Observatory.
Solar Observation
Sun
Mount Wilson StarMap
http://www.mtwilson.edu/Services/StarMap
General sites
Stars
MPIfR Pulsar Group
http://www.mpifr-bonn.mpg.de/div/pulsar/
Also hosts the homepage of The European Pulsar Network and its online database of pulsar observations.
Stars
Multiwavelength Messier Museum
http://sirtf.caltech.edu/Education/Messier/tie.html
Images of Messier objects in a variety of wavebands.
Amateur Astronomy, Education and Public Impact
Multiwavelength Milky Way
http://adc.gsfc.nasa.gov/mw/mmw_sci.html
Maps of the Milky Way galaxy at ten wavelength regions.
Milky Way Galaxy
Galaxies
Multiwavelength Milky Way Education Page
http://adc.gsfc.nasa.gov/mw/mmw_edu.html
Maps of the Milky Way galaxy at ten wavelength regions.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Multiwavelength Milky Way Education Page
http://adc.gsfc.nasa.gov/mw/mmw_edu.html
Maps of the Milky Way galaxy at ten wavelength regions.
Amateur Astronomy, Education and Public Impact
Munich Astro Archive Constellations page
http://www.maa.mhn.de/Maps/Const/constS.html
Constellations and Asterisms
Stars
Museum of the History of Science of Florence
http://galileo.imss.firenze.it/museo/4/index.html
Galileo
History and Archaeoastronomy
Nagoya University, Dept. of Physics and Astrophysics
http://www.a.phys.nagoya-u.ac.jp/
Japan
National Astronomy
Names of the 88 Constellations in Different Languages
http://www.constellation-names.at/
Constellations and Asterisms
Stars
NASA
http://www.nasa.gov/
Specific institutions and organisations
National Astronomy
NASA Astrobiology Institute (NAI)
http://www.nai.arc.nasa.gov/
NAI carries out collaborative research and education in astrobiology, the science dealing with the beginnings, evolution and future of life on Earth and elsewhere.
Earth
NASA astrophysics data centres and services
http://ssds.nasa.gov/Ap/Ap_data.htm
Databases
NASA Astrophysics Data System
http://adswww.harvard.edu/
Databases
NASA Center for Computational Astrobiology
http://cca.arc.nasa.gov/
Aims to advance understanding of the origin, evolution and distribution of life in the Universe, using theoretical and computational tools.
Earth
NASA Central Operation of Resources for Educators (CORE)
http://core.nasa.gov/
Makes NASA educational materials available via mail order.
Astronomical Education
Amateur Astronomy, Education and Public Impact
NASA Earth Science Directorate
http://earthsciences.gsfc.nasa.gov/
A gateway to the NASA bodies studying atmospheres, earth observation, global change, terrestrial studies, and hydrospheric studies.
Earth Systems Science
Earth
NASA Education Programs
http://education.nasa.gov/
Covering aerospace, space science, space exploration, earth science, and biological and physical research.
Astronomical Education
Amateur Astronomy, Education and Public Impact
NASA High Energy Astrophysics education site
http://heasarc.gsfc.nasa.gov/docs/corp/outreach.html
Education
National Astronomy
NASA History Office
http://history.nasa.gov/
General lists
History and Archaeoastronomy
NASA Human Spaceflight Gallery
http://spaceflight.nasa.gov/gallery/
Amateur Astronomy, Education and Public Impact
NASA Image eXchange (NIX)
http://nix.nasa.gov/
A web-based search engine for keyword searching one or more of NASA's online image and photo collections. Also features a browsable collection of categorized highlights.
Amateur Astronomy, Education and Public Impact
NASA JPL Images and Videos
http://www.jpl.nasa.gov/proto/images.html
A multimedia collection covering the solar system, stars and galaxies, spacecraft, telescopes and technology.
Amateur Astronomy, Education and Public Impact
NASA JSC Digital Image Collection
http://images.jsc.nasa.gov/
NASA's Johnson Space Center's collection of press release images from the manned space program, from Mercury to the Shuttle.
Amateur Astronomy, Education and Public Impact
NASA Observatorium
http://observe.arc.nasa.gov/nasa/core.shtml.html
A public access site for Earth and space data.
Astronomical Education
Amateur Astronomy, Education and Public Impact
NASA Office of Space Flight Space Hotlist
http://www.hq.nasa.gov/osf/hotlist/index.html
Links to space missions, publications, agencies, etc.
Amateur Astronomy, Education and Public Impact
NASA Organisations
http://www.nasa.gov/nasaorgs/index.html
Institutions and Organisations
National Astronomy
NASA Planetary Data System Map-A-Planet
http://pdsmaps.wr.usgs.gov/maps.html
Panable maps of a number of solar system bodies.
Planetary Physics
Solar System
NASA Planetary Data System Map-A-Planet
http://pdsmaps.wr.usgs.gov/maps.html
Panable maps of a number of solar system bodies.
Amateur Astronomy, Education and Public Impact
NASA Planetary Photojournal
http://photojournal.jpl.nasa.gov/
A collection of images of solar system bodies.
Amateur Astronomy, Education and Public Impact
NASA Planetary Photojournal
http://photojournal.jpl.nasa.gov/
A collection of images of solar system bodies.
Solar System
NASA Planetary Photojournal
http://photojournal.jpl.nasa.gov/
A collection of images of solar system bodies.
Solar System
Solar System
NASA search page
http://www.nasa.gov/search/
General search Engines
NASA Solar-Terrestrial Probes Program
http://stp.gsfc.nasa.gov/
Sun
NASA Solar-Terrestrial Probes Program
http://stp.gsfc.nasa.gov/
Earth
NASA Space Hotlist
http://www.hq.nasa.gov/osf/hotlist/
General Sites
Space Missions
NASA space missions
http://spacescience.nasa.gov/missions/index.htm
General Sites
Space Missions
NASA Space Science
http://spacescience.nasa.gov/
Solar System
Solar System
NASA Space Science
http://spacescience.nasa.gov/
Solar System
NASA Space Science Education
http://spacescience.nasa.gov/education/index.htm
Features an extensive list of links to resources for those involved in space-related education, as scientists, educators, policy makers, museum curators, etc.
Astronomical Education
Amateur Astronomy, Education and Public Impact
NASA space science education sites
http://spacescience.nasa.gov/education/index.htm
Education
National Astronomy
NASA SSDS Solar System Exploration
http://ssds.nasa.gov/SSE/
Solar System
NASA SSDS Solar System Exploration
http://ssds.nasa.gov/SSE/
Solar System
Solar System
NASA SSDS Sun-Earth Connection
http://ssds.nasa.gov/SEC/
Earth
NASA SSDS Sun-Earth Connection
http://ssds.nasa.gov/SEC/
Sun
NASA Sun-Earth Connection
http://sec.gsfc.nasa.gov/
Sun
NASA Sun-Earth Connection
http://sec.gsfc.nasa.gov/
Earth
NASA Sun-Earth connection data centres
http://ssds.nasa.gov/SEC/SEC_data.htm
The Sun
Solar System
NASA Sun-Earth Connection Image Gallery
http://sec.gsfc.nasa.gov/sec_resources_imagegallery.htm
Amateur Astronomy, Education and Public Impact
NASA's Earth Observing System (EOS)
http://eospso.gsfc.nasa.gov/
Consists of a series of satellites, a science component, and a data system supporting a coordinated series of polar-orbiting and low inclination satellites for long-term global observations of the land surface, biosphere, solid Earth, atmosphere, and oceans.
Earth
Nassau Station Robotic Telescope
http://astrwww.cwru.edu/nassau.html
This 0.9 meter telescope in Ohio is accessible online for the public to request an observation of their choosing.
Amateur Astronomy
History and Archaeoastronomy
National Astronomical Observatory of Japan
http://www.nao.ac.jp/
Japan
National Astronomy
National Astronomical Observatory of Japan
http://www.nao.ac.jp/
Specific links
National Astronomy
National Center for Atmospheric Research (NCAR)
http://www.ncar.ucar.edu/ncar/
NCAR's research is conducted in several principal disciplinary areas: atmospheric chemistry; mesoscale and microscale meteorology; solar and solar-terrestrial physics; and climate and the linking of climate with other environmental systems.
Earth's Atmosphere
Earth
National Climate Data Center
http://lwf.ncdc.noaa.gov/oa/
The world's largest active archive of weather data.
Earth's Atmosphere
Earth
National Geophysical Data Center
http://www.ngdc.noaa.gov/
Hosts data on a variety of geophysical topics - geomagnetism, marine geology, snow and ice, upper atmosphere, etc.
Geophysics
Earth
National Oceanic and Atmospheric Administration (NOAA)
http://www.noaa.gov/
NOAA's mission is to describe and predict environment changes, and to conserve coastal and marine resources.
Earth
National Space Development Agency of Japan
http://www.nasda.go.jp/index_e.html
Japan
National Astronomy
National Space Development Agency of Japan
http://www.nasda.go.jp/index_e.html
Specific institutions and organisations
National Astronomy
National Space Science Data Center
http://nssdc.gsfc.nasa.gov/
Specific institutions and organisations
National Astronomy
Native American Astronomy
http://indy4.fdl.cc.mn.us/~isk/stars/starmenu.html
Specific sites
History and Archaeoastronomy
Nature
http://www.nature.com/nature/
Astronomical Publications
NCSA Astronomy Digital Image Library (ADIL)
http://imagelib.ncsa.uiuc.edu/imagelib.html
Images make up an important part of the data in astronomical research, and the World Wide Web provides an excellent opportunity to make this data available to the entire research community. To meet this opportunity, the Astronomy Digital Image Library (ADIL) has been established, with the 'books' of this Library being fully-processed and research-ready images in FITS format.
Amateur Astronomy, Education and Public Impact
Near Earth Asteroid Rendezvous (NEAR) Mission
http://near.jhuapl.edu/
The NEAR spacecraft landed on the asteroid Eros in early 2001.
Planets and Satellites
Solar System
Near Earth Objects Information Centre
http://www.nearearthobjects.co.uk/
A UK government body established to provide information on Near Earth Objects (NEOs) to the public and media, and to support the NEO science community.
Planets and Satellites
Solar System
Near-Earth Object Program
http://neo.jpl.nasa.gov/
A NASA body established in the late 1990s to help coordinate, and provide a focal point for, the study of those comets and asteroids that can approach the Earth's orbit. Provides orbital data on known near Earth objects.
Planets and Satellites
Solar System
Ned Wright's Cosmology Tutorial
http://www.astro.ucla.edu/~wright/cosmolog.htm
An introduction to modern cosmology.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Ned Wright's Cosmology Tutorial
http://www.astro.ucla.edu/~wright/cosmolog.htm
An introduction to modern cosmology.
Cosmological Models and Concepts
Cosmology
New Horizons - A Pluto-Kuiper Belt Mission
http://pluto.jhuapl.edu/
The Pluto-Kuiper Belt Mission will launch in 2006, fly by Pluto and Charon as early as 2015, and pass the Kuiper Belt Objects by 2026. Currently in the design stage.
Planetary Physics
Solar System
New Scientist
http://www.newscientist.com/
Astronomical Publications
New Scientist
http://www.newscientist.com/
Amateur Astronomy, Education and Public Impact
New Technology Telescope, La Silla
http://www.ls.eso.org/lasilla/Telescopes/NEWNTT/
Telescopes
National Astronomy
NIST Recommended Rest Frequencies for Observed Interstellar Molecular Microwave Transitions
http://physics.nist.gov/cgi-bin/micro/table5/start.pl
A database of molecular transitions that may be searched using type of molecule, telescope where observed, published source of data, or empirical formula as filters.
Interstellar Medium
NOAA Aeronomy Laboratory
http://www.al.noaa.gov/
Earth's Atmosphere
Earth
NOAA/NGDC Solar-Terrestrial Physics
http://www.ngdc.noaa.gov/stp/
The Solar-Terrestrial Physics division of the National Geophysical Data Center is the focal point for data pertaining to solar activity, the ionosphere, and geomagnetic variations.
Earth's Magnetosphere
Earth
NOAA/NGDC Solar-Terrestrial Physics
http://www.ngdc.noaa.gov/stp/
The Solar-Terrestrial Physics division of the National Geophysical Data Center is the focal point for data pertaining to solar activity, the ionosphere, and geomagnetic variations.
Solar Observation
Sun
NOAO Image Gallery
http://www.noao.edu/image_gallery/
The National Optical Astronomy Observatory's image gallery.
Amateur Astronomy, Education and Public Impact
NSSDC Photo Gallery
http://nssdc.gsfc.nasa.gov/photo_gallery/
The National Space Science Data Center's photo gallery, covering nebulae, galaxies and globular clusters, stars and exotic objects.
Amateur Astronomy, Education and Public Impact
NSSDC Planetary Missions list
http://nssdc.gsfc.nasa.gov/planetary/projects.html
General Sites
Space Missions
Numerical Cosmology at MPA
http://www.mpa-garching.mpg.de/NumCos/
Images, numerical data and code associated with the numerical cosmology programs carried out at the Max Planck Institute for Astrophysics, Garching.
Cosmological Models and Concepts
Cosmology
Observational Tests of Big-Bang Cosmology
http://astro.uchicago.edu/home/web/mohr/Compton/lectures.html
Ten lectures on observational cosmology.
Cosmological Models and Concepts
Cosmology
Observatoire de Lyon
http://www-obs.univ-lyon1.fr/obs/observatoire.gb.html
Specific links
National Astronomy
Observatories Virtual Library Index
http://www.astroweb.com.ar
Observatories
National Astronomy
Observatorium Hoher List: Astronomical Images
http://www.astro.uni-bonn.de/~maltmann/gallery.html
Images from the Hoher List Observatory, in the Eifel mountain range 100 km SW of Bonn.
Amateur Astronomy, Education and Public Impact
OGLE – the Optical Gravitational Lensing Experiment
http://bulge.princeton.edu/~ogle/
The OGLE project is a long term project with the main goal of searching for dark matter with microlensing phenomena. The Magellanic Clouds and the Galactic Bulge are monitored for microlensing events.
Cosmology
OMNIWeb - Near Earth Heliospheric Data
http://nssdc.gsfc.nasa.gov/omniweb/ow.html
Data on the interplanetary magnetic field, plasma data, energetic particle fluxes, and some solar and geomagnetic activity indices.
Solar Heliosphere and Cosmic Rays
Sun
Open University
http://www.open.ac.uk/frames.html
Universities
National Astronomy
Operational Significant Event Imagery
http://www.osei.noaa.gov/
Satellite images and movies of significant environmental events (storms, fires, floods, icebergs, etc). Updated on a daily basis with imagery from current events.
Amateur Astronomy, Education and Public Impact
Operational Significant Event Imagery
http://www.osei.noaa.gov/
Satellite images and movies of significant environmental events (storms, fires, floods, icebergs, etc). Updated on a daily basis with imagery from current events.
Earth
Optical Detection,
http://www.eso.org/projects/odt/
General Sites
Instrumentation and Observational Techniques
Orbital elements of selected visual binaries
http://www.dibonsmith.com/elements.htm
Binary Stars
Stars
Organizing the Sky
http://physics.gmu.edu/classinfo/astr103/CourseNotes/Text/Lec01/Lec01_pt2_txt_organizingSky.htm
Course notes on coordinate and time-keeping systems from George Mason University.
Positional Concepts
Co-ordinates, Time and Motion
Original historical texts
http://www.liberliber.it/biblioteca/index.htm
Biographies
History and Archaeoastronomy
Overwhelmingly Large Telescope OWL
http://www.eso.org/projects/owl/
Telescopes
National Astronomy
Palomar Testbed Interferometer (PTI)
http://huey.jpl.nasa.gov/palomar/
PTI was designed to test several key technologies for the Keck interferometer as well as future space based interferometers.
Meteors
Solar System
Paranal
http://www.eso.org/paranal/
Specific links
National Astronomy
PDS Educational Resources
http://pds.jpl.nasa.gov/edu.html
Education
National Astronomy
People and discoveries
http://www.pbs.org/wgbh/aso/databank/physastro.html
General lists
History and Archaeoastronomy
Peoria Astronomical Society
http://www.astronomical.org/pasmenu.htm
Featuring an astronomical handbook with information on amateur observing and basic astronomical facts and concepts.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
Persons in astronomy
http://star-www.rl.ac.uk/astrolist/astrosearch.html
General sites
National Astronomy
Phys of Plasmas
http://ojps.aip.org/pop/?jsessionid=1666181007056238219
Astronomical Publications
Physics World
http://physicsweb.org/toc
Astronomical Publications
Physics World
http://physicsweb.org/toc/world
The monthly magazine of the Institute of Physics.
Amateur Astronomy, Education and Public Impact
PhysLink.com – Physics and Astronomy Online
http://www.physlink.com/
Physics and astronomy reference data and links, educational material (including a section on graduate studies), discussion forums and news.
Amateur Astronomy, Education and Public Impact
PhysLink.com – Physics and Astronomy Online
http://www.physlink.com/
Physics and astronomy reference data and links, educational material (including a section on graduate studies), discussion forums and news.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Planck
http://astro.estec.esa.nl/SA-general/Projects/Planck/
ESA's Planck mission will produce all-sky maps at nine frequencies from 30 to 860 GHz, with a resolution ranging from 33 to 5 arcmin. All nine Planck sky maps will be used to produce a single map of the Cosmic Microwave Background anisotropies.
Cosmology
PLANET - Probing Lensing Anomalies
http://mplanet.anu.edu.au
Microlensing anomalies are departures from the simple, achromatic point-source, point-lens microlensing light curve. There are a variety of possible causes: blended light from other stars, double lenses, double background stars, lenses with planetary systems, resolution of a large background star, or complicated relative motion within the lens system.
Cosmology
PLANET - Probing Lensing Anomalies
http://mplanet.anu.edu.au
Microlensing anomalies are departures from the simple, achromatic point-source, point-lens microlensing light curve. There are a variety of possible causes: blended light from other stars, double lenses, double background stars, lenses with planetary systems, resolution of a large background star, or complicated relative motion within the lens system.
Meteors
Solar System
Planet Quest
http://planetquest.jpl.nasa.gov/
NASA homepage for the search for extrasolar planets.
Meteors
Solar System
Planet Quest Educator Resources
http://planetquest.jpl.nasa.gov/resources/resources_index.html
A NASA educational page detailing the search for extrasolar planets and life.
Meteors
Solar System
Planet Quest Educator Resources
http://planetquest.jpl.nasa.gov/resources/resources_index.html
A NASA educational page detailing the search for extrasolar planets and life.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Planetary Data Systems Educational Resources
http://pds.jpl.nasa.gov/edu.html
Astronomical Education
Amateur Astronomy, Education and Public Impact
Planetary Data Systems Educational Resources
http://pds.jpl.nasa.gov/edu.html
Solar System
Solar System
Planetary Data Systems Educational Resources
http://pds.jpl.nasa.gov/edu.html
Solar System
Planetary Fact sheets
http://nssdc.gsfc.nasa.gov/planetary/planetfact.html
General Sites
Solar System
Planetary Magnetospheres
http://www-spc.igpp.ucla.edu/ssc/tutorial/planet_magnetospheres.html
An outline of the general features of planetary magnetospheres.
Planetary Physics
Solar System
Planetary Magnetospheres
http://www-spc.igpp.ucla.edu/ssc/tutorial/planet_magnetospheres.html
An outline of the general features of planetary magnetospheres.
Earth's Magnetosphere
Earth
Planetary Science Research Discoveries
http://www.psrd.hawaii.edu/
An educational site sharing the latest NASA research on planets, meteorites, and other solar system bodies.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Planetary Science Research Discoveries
http://www.psrd.hawaii.edu/
An educational site sharing the latest NASA research on planets, meteorites, and other solar system bodies.
Solar System
Planetary Science Research Discoveries
http://www.psrd.hawaii.edu/
An educational site sharing the latest NASA research on planets, meteorites, and other solar system bodies.
Solar System
Solar System
Planetary Sciences
http://nssdc.gsfc.nasa.gov/planetary/planetary_home.html
General Sites
Solar System
Planetary Sciences at the National Space Science Data Centre
http://nssdc.gsfc.nasa.gov/planetary/
Planetary Physics
Solar System
Planetary Society's Near Earth Objects Page
http://neo.planetary.org/
Planets and Satellites
Solar System
Planetary VR
http://www.pgd.hawaii.edu/prpdc/vr/planetvr.html
Tour the surface of the Moon and Mars using images from NASA mission data. (Requires Apple QTVR).
Planetary Physics
Solar System
Planetary VR
http://www.pgd.hawaii.edu/prpdc/vr/planetvr.html
Tour the surface of the Moon and Mars using images from NASA mission data. (Requires Apple QTVR).
Amateur Astronomy, Education and Public Impact
Positional Astronomy Notes
http://star-www.st-and.ac.uk/~fv/webnotes/
Lecture notes on positional astronomy.
Positional Concepts
Co-ordinates, Time and Motion
PPARC
http://www.pparc.ac.uk/
Specific institutions and organisations
National Astronomy
Princeton Pulsar Group
http://pulsar.princeton.edu/
Part of the Gravity Group in the Department of Physics at Princeton University. Active research efforts aim at high precision timing, studies of the pulsar emission mechanism, and the continuing search for new pulsars.
Stars
Project CLEA – Contemporary Laboratory Experiences in Astronomy
http://www.gettysburg.edu/academics/physics/clea/CLEAhome.html
Project CLEA develops laboratory exercises that illustrate modern astronomical techniques using digital data and color images. They are suitable for high-school and college classes at all levels, but come with defaults set for use in introductory astronomy classes for non-science majors.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Project Radio Jove
http://radiojove.gsfc.nasa.gov/
An educational outreach project of NASA, the University of Florida, and others. The project is centered around the development of low cost radio telescope kits which can be assembled by science classes and used to collect planetary or solar radio astronomy data.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Publications of the Astronomical Society of the Pacific
http://cdsaas.u-strasbg.fr:2001/PASP/journal/
Astronomical Publications
Pulsars at Arecibo
http://www.naic.edu/~pulsar/
A starting point for pulsar observers intending to use the Arecibo telescope.
Stars
Quasars and Active Galactic Nuclei
http://nedwww.ipac.caltech.edu/level5/Kembhavi/frames.html
The introductory chapter from Kembhavi and Narlikar's "Quasars and Active Galactic Nuclei".
Active Galaxies, Quasars and Galactic Nuclei
Galaxies
Radio Pulsar Newsletter
http://www.physics.usyd.edu.au/rcfta/psrnews/psrnews.html
Abstracts of recently submitted or accepted papers in the field of radio pulsar research.
Stars
Radio Telescopes Salopian list
http://www.r-clarke.org.uk/astrolinks.htm
Telescopes
National Astronomy
Rapid Service/Prediction Center for Earth Orientation Parameters
http://maia.usno.navy.mil/
Providing Earth orientation parameters (EOPs) on a rapid turnaround basis.
Positional Concepts
Co-ordinates, Time and Motion
Regulus!
http://www.regulusastro.com/regulus.html
Aims to bring together in a single gateway site 'original' documents and reviews and/or electronic links to articles oof current and lasting interest to cosmologists, particle physicists and extragalactic astronomers.
A newsletter for the amateur astronomer.
Amateur Astronomy, Education and Public Impact
Relativity and Black Hole Links
http://casa.colorado.edu/~ajsh/relativity.html
Active Galaxies, Quasars and Galactic Nuclei
Galaxies
Relativity and Black Hole Links
http://casa.colorado.edu/~ajsh/relativity.html
Amateur Astronomy, Education and Public Impact
Relativity Links
http://wugrav.wustl.edu/links.html
A list of Internet resources for relativity from the Washington University Relativity Group.
Amateur Astronomy, Education and Public Impact
Relativity Tutorial
http://www.astro.ucla.edu/~wright/relatvty.htm
Astronomical Education
Amateur Astronomy, Education and Public Impact
Research Center for the Early Universe
http://www.resceu.s.u-tokyo.ac.jp/Welcome.html
General Sites
Cosmology
Research Center for Theoretical Astrophysics, University of Sydney
http://www.physics.usyd.edu.au/rcfta/rcfta.html
General sites
Theory
Rosetta
http://sci.esa.int/rosetta/
The ESA Rosetta mission will study the nucleus of comet Wirtanen and its environment in detail for a period of nearly two years. En-route there will be fly-bys of two asteroids.
Asteroids
Solar System
Royal Astronomical Society
http://www.ras.org.uk/html/ras_library.html
Specific institutions and organisations
National Astronomy
Royal Astronomical Society Library
http://www.ras.org.uk/html/ras_library.html
Libraries
National Astronomy
Royal Observatory Edinburgh Information Office
http://www.roe.ac.uk/info/
Amateur Astronomy, Education and Public Impact
Royal Observatory Greenwich
http://www.rog.nmm.ac.uk/
Founded in 1675 as Britain's national observatory, the Royal Observatory now functions as an educational center and museum, and also hosts public observing sessions.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Royal Observatory, Edinburgh
http://www.roe.ac.uk/
UK
National Astronomy
Royal Society
http://www.royalsoc.ac.uk/
Specific institutions and organisations
National Astronomy
Russian Space Agency
http://liftoff.msfc.nasa.gov/rsa/rsa.html
Specific institutions and organisations
National Astronomy
Russian Space Institute
http://www.iki.rssi.ru/Welcome.html
Specific institutions and organisations
National Astronomy
Rutherford Appleton Lab Space Science and Technology Dept
http://www.ssd.rl.ac.uk/
Specific institutions and organisations
National Astronomy
Salopian Web
http://www.r-clarke.org.uk/
Amateur astronomy
National Astronomy
Salopian Web list
http://www.r-clarke.org.uk/astrolinks.htm
Institutions and Organisations
National Astronomy
Salopian Web list
http://www.r-clarke.org.uk/astrolinks.htm
Observatories
National Astronomy
Santa Cruz Theoretical Cosmology Group
http://physics.ucsc.edu/users/risa/cosmo/
Cosmology
Science @ NASA
http://science.nasa.gov/
Amateur Astronomy, Education and Public Impact
Science News Online
http://www.sciencenews.org/
Amateur Astronomy, Education and Public Impact
Scientific American
http://www.sciam.com/
Astronomical Publications
SDAC Eclipse Information
http://umbra.nascom.nasa.gov/eclipse/
NASA Eclipse Bulletin, as well as links to information on the most recent eclipses and eclipses in general.
Sun
SEDS Messier Catalog
http://seds.lpl.arizona.edu/messier/Messier.html
A complete guide to the 110 objects recognized as the standard Messier catalog.
Amateur Astronomy, Education and Public Impact
SEDS Messier Catalog
http://seds.lpl.arizona.edu/messier/Messier.html
A complete guide to the 110 objects recognized as the standard Messier catalog.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
SEDS Star Clusters
http://www.seds.org/messier/cluster.html
Information on and images of globular and open clusters, and multiple star systems.
Stellar Populations and Star Clusters
Stars
Seoul National University, Dept. of Astronomy
http://astro.snu.ac.kr/
Korea
National Astronomy
SETI Institute
http://www.seti-inst.edu/
The mission of the SETI Institute is to explore, understand and explain the origin, nature, prevalence and distribution of life in the universe.
Earth
SETI@home
http://setiathome.ssl.berkeley.edu/
SETI@home is a scientific experiment that uses Internet-connected computers in the Search for Extraterrestrial Intelligence (SETI). You can participate by running a free program that downloads and analyzes radio telescope data.
Earth
SETI@home
http://setiathome.ssl.berkeley.edu/
SETI@home is a scientific experiment that uses Internet-connected computers in the Search for Extraterrestrial Intelligence (SETI). You can participate by running a free program that downloads and analyzes radio telescope data.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Simulations of X-Ray Clusters
http://zeus.ncsa.uiuc.edu/chdm_script.html
Images and movies from numerical simulations of the evolution of X-ray clusters in the presence of cold and hot dark matter.
Groups and Clusters of Galaxies
Galaxies
Sky & Telescope
http://skyandtelescope.com/
Astronomical Publications
Sky & Telescope
http://skyandtelescope.com/
Amateur Astronomy, Education and Public Impact
Sky View Café
http://www.skyviewcafe.com/
A very detailed Java simulation of the night sky. Includes star charts, a 3D orrery, displays of the moons of Jupiter and Saturn, an astronomical event calendar, an ephemeris generator, and many other features. (Calculation intensive, does not display correctly in some browsers).
Amateur Astronomy, Education and Public Impact
SkyView Internet Virtual Telescope
http://skyview.gsfc.nasa.gov/cgi-bin/titlepage.pl
Other Resources
SkyView Non-Astronomer Page
http://skyview.gsfc.nasa.gov/docs/easy.html
An interface to NASA's SkyView Virtual Observatory specifically designed for the non-astronomer to learn about astronomy and to display pictures of the celestial sky in multiple wavelengths.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
SkyView Non-Astronomer Page
http://skyview.gsfc.nasa.gov/docs/easy.html
An interface to NASA's SkyView Virtual Observatory specifically designed for the non-astronomer to learn about astronomy and to display pictures of the celestial sky in multiple wavelengths.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Skyview Virtual Observatory
http://skyview.gsfc.nasa.gov
General sites
Stars
Sloan Digital Sky Survey
http://www.sdss.jhu.edu
General sites
Stars
SN 1987A and Other Supernovae Data Archive
http://www.aao.gov.au/local/www/sne/SN1987A.html
Stars
Society for Popular Astronomy
http://www.popastro.com/home.htm
A UK based astronomical society.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
Society for Popular Astronomy
http://www.popastro.com/
Amateur astronomy
National Astronomy
SOHO images
http://sohowww.nascom.nasa.gov/
Image Sites
Solar Convection
http://www.pa.msu.edu/~steinr/talks/conv99/
Solar Theory
Sun
Solar Eclipse: Stories from the Path of Totality
http://www.exploratorium.edu/eclipse/
Featuring webcasts of recent eclipses.
Sun
Solar images
http://umbra.nascom.nasa.gov/images/latest.html
Image Sites
Solar Links
http://www.lmsal.com/science2.htm
Sun
Solar Links
http://www.lmsal.com/science2.htm
Amateur Astronomy, Education and Public Impact
Solar Magneto-Convection
http://www.pa.msu.edu/~steinr/talks/mhd01/
Solar Theory
Sun
Solar neutrino review articles
http://www.sns.ias.edu/~jnb/Papers/Preprints/reviewarticles.html
Review articles by John Bahcall.
Stellar Models and Concepts
Stars
Solar Physics
http://www.wkap.nl/prod/j/0038-0938
Astronomical Publications
Solar Physics (requires cookies)
http://www.kluweronline.com/issn/0038-0938/current
A journal treating all aspects of solar physics, ranging from the internal structure of the Sun and its evolution to the outer corona and solar wind in interplanetary space. Solar-terrestrial physics and stellar research are also covered when the results have a direct bearing on our understanding of the Sun.
Sun
Solar Physics Information
http://www.hao.ucar.edu/public/education/sp/sp.html
Sun
Solar Physics Information
http://www.hao.ucar.edu/public/education/sp/sp.html
Astronomical Education
Amateur Astronomy, Education and Public Impact
Solar System Dynamics
http://ssdbook.maths.qmw.ac.uk/
Mathematica notebooks and QuickTime animations of orbital phenomena, made available to complement a textbook.
Solar System Models and Concepts
Solar System
Solar System Live
http://www.fourmilab.ch/solar/
An interactive orrery. You can view the entire Solar System, or just the inner planets. Controls allow you to set time and date, viewpoint, observing location, orbital elements to track an asteroid or comet, and a variety of other parameters.
Solar System
Solar System Live
http://www.fourmilab.ch/solar/
An interactive orrery. You can view the entire Solar System, or just the inner planets. Controls allow you to set time and date, viewpoint, observing location, orbital elements to track an asteroid or comet, and a variety of other parameters.
Solar System
Solar System
Solar System Live
http://www.fourmilab.ch/solar/
An interactive orrery. You can view the entire Solar System, or just the inner planets. Controls allow you to set time and date, viewpoint, observing location, orbital elements to track an asteroid or comet, and a variety of other parameters.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Solar System Research (requires cookies)
http://www.kluweronline.com/issn/0038-0946/current
Solar System Research, the English-language translation of Astronomicheskii Vestnik, explores the bodies of the Solar System, i.e., planets and their satellites, asteroids, comets, meteoric matter, and cosmic dust. Coverage focuses on the physics and dynamics of these bodies, their origin and evolution, and methods for investigating them.
Solar System
Solar System
Solar System Research (requires cookies)
http://www.kluweronline.com/issn/0038-0946/current
Solar System Research, the English-language translation of Astronomicheskii Vestnik, explores the bodies of the Solar System, i.e., planets and their satellites, asteroids, comets, meteoric matter, and cosmic dust. Coverage focuses on the physics and dynamics of these bodies, their origin and evolution, and methods for investigating them.
Solar System
Solar System Simulator
http://space.jpl.nasa.gov/
Creates simulated images of many planets and minor bodies viewed from a variety of positions, and at different times and with varying fields of view.
Solar System
Solar System Simulator
http://space.jpl.nasa.gov/
Creates simulated images of many planets and minor bodies viewed from a variety of positions, and at different times and with varying fields of view.
Solar System
Solar System
Solar System Simulator
http://space.jpl.nasa.gov/
Creates simulated images of many planets and minor bodies viewed from a variety of positions, and at different times and with varying fields of view.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Solar UK Research Facility (SURF)
http://surfwww.mssl.ucl.ac.uk/surf/
The SURF archive holds data from Yohkoh, SOHO-CDS, TRACE, as well as ancillary and ground-based data.
Solar Observation
Sun
Solar Wind and Interplanetary Magnetic Field: A Tutorial (PDF)
http://www-spc.igpp.ucla.edu/ssc/tutorial/solwind_magsphere_tutorial.pdf
This review examines the properties of the fields and particles of the solar wind. In particular, the roles of the solar magnetic field and solar rotation are discussed, together with coronal mass ejections.
Solar Heliosphere and Cosmic Rays
Sun
Solar Wind and Particles
http://galvin.sr.unh.edu/SOHO/SWT98/index.html
A review of the scientific highlights of the first two years of the SOHO mission, focusing on the solar wind and particles.
Solar Heliosphere and Cosmic Rays
Sun
Solar-Terrestrial Environment Laboratory, Nagoya University
http://www.stelab.nagoya-u.ac.jp/ste-www1/index.html
This laboratory is conducting a number of research projects involving the heliosphere, ionosphere, magnetosphere, atmosphere, and integrated data analyses and simulations.
Solar Observation
Sun
Solar-Terrestrial Environment Laboratory, Nagoya University
http://www.stelab.nagoya-u.ac.jp/ste-www1/index.html
This laboratory is conducting a number of research projects involving the heliosphere, ionosphere, magnetosphere, atmosphere, and integrated data analyses and simulations.
Earth's Magnetosphere
Earth
South African Astronomical Observatory
http://da.saao.ac.za/
Africa
National Astronomy
Space Biology – An Educator's Resource
http://www.spacebio.net/
An online resource for undergraduate life sciences educators. It provides information, downloadable teaching materials, and links to other relevant web sites.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Space Biology - An Educator's Resource
http://www.spacebio.net/
An online resource for undergraduate life sciences educators. It provides information, downloadable teaching materials, and links to other relevant web sites.
Earth
Space Calendar
http://www.jpl.nasa.gov/calendar/
Space-related activities and anniversaries for the coming year. Includes spacecraft launches, orbital events, conferences, historical anniversaries, etc.
Amateur Astronomy, Education and Public Impact
Space Image Gallery
http://www.deepspace.s5.com/
Amateur Astronomy, Education and Public Impact
Space Imaging
http://www.spaceimaging.com/
Featuring a gallery of remote sensing images of the Earth.
Amateur Astronomy, Education and Public Impact
Space Interferometry Mission (SIM)
http://sim.jpl.nasa.gov/
Scheduled for launch in 2009, NASA's Space Interferometry Mission will use three optical long-baseline Michelson stellar interferometers to measure stellar positions. A five year mission is planned, with an accuracy of 4 microarcsec down to a limiting visual magnitude of 20.
Astrometry
Co-ordinates, Time and Motion
Space Mission Acronym List and Hyperlink Guide
http://ranier.oact.hq.nasa.gov/Sensors_page/MissionLinks.html
Amateur Astronomy, Education and Public Impact
Space Mission Guide
http://ranier.oact.hq.nasa.gov/Sensors_page/MissionLinks.html
General Sites
Space Missions
Space Physics Textbook
http://www.oulu.fi/~spaceweb/textbook/
Earth's Magnetosphere
Earth
Space Physics Textbook
http://www.oulu.fi/~spaceweb/textbook/
Basic Solar Properties
Sun
Space Science Data System
http://ssds.nasa.gov/
Databases
Space Telescope Science Institute
http://www.stsci.edu/top.html
Specific institutions and organisations
National Astronomy
Space Telescope Science Institute Digitized Sky Survey
http://archive.stsci.edu/cgi-bin/dss_form
General sites
Stars
Space Today Online – Deep Space section
http://www.spacetoday.org/DeepSpace.html
Amateur Astronomy, Education and Public Impact
Space-Talk
http://www.space-talk.com/
Moderated discussion forums for astronomy, astrophysics and space exploration.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
Space.com
http://www.space.com/
Current space and astronomy news.
Amateur Astronomy, Education and Public Impact
SpaceDaily.com
http://www.spacedaily.com/
Amateur Astronomy, Education and Public Impact
Spaceflight Now
http://www.spaceflightnow.com/
Amateur Astronomy, Education and Public Impact
SpaceRef
http://www.spaceref.com/
Amateur Astronomy, Education and Public Impact
SpaceRef
http://www.spaceref.com/
Amateur Astronomy, Education and Public Impact
SpaceScience.com – Space Science News
http://spacescience.com/
SpaceScience.com features daily news about NASA research, live sky events, space weather, and opportunities to participate in NASA science.
Amateur Astronomy, Education and Public Impact
Spacetime Wrinkles
http://archive.ncsa.uiuc.edu/Cyberia/NumRel/NumRelHome.html
A multimedia tour of the world of relativity, black holes and space-time phenomena. Includes movies in a variety of formats, together with text and audio commentary.
Amateur Astronomy, Education and Public Impact
SpaceWeather.com
http://www.spaceweather.com/
Science news and information about the Sun-Earth environment.
Amateur Astronomy, Education and Public Impact
SpaceWeather.com
http://www.spaceweather.com/
Science news and information about the Sun-Earth environment.
Solar Activity
Sun
Spectra
http://www.astro.uiuc.edu/~kaler/sow/spectra.html
A general introduction to astronomical spectra, their measurement and uses.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Standard Planetary Information, Formulae and Constants
http://atmos.nmsu.edu/jsdap/encyclopediawork.html
Planetary Physics
Solar System
Standard solar models, helioseismology and solar models, and solar neutrinos
http://www.sns.ias.edu/~jnb/Papers/Preprints/solarmodels.html
Preprints, data and code from John Bahcall.
Stellar Models and Concepts
Stars
Stardust
http://stardust.jpl.nasa.gov/
NASA's Stardust mission aims to collect and return to earth samples of cometary material.
Asteroids
Solar System
Starlink
http://www.starlink.rl.ac.uk/
Specific institutions and organisations
National Astronomy
StarPages
http://cdsweb.u-strasbg.fr/~heck/spages.htm
General sites
National Astronomy
Stars and Constellations
http://www.astro.wisc.edu/~dolan/constellations/
Information on the position, contents and historical origin of the constellations.
Constellations and Asterisms
Stars
Stars, Galaxies and Cosmology
http://csep10.phys.utk.edu/astr162/lect/index.html
An educational page discussing stars, galaxies and cosmology.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Starstuff.org
http://www.starstuff.org/
An interesting site featuring articles on a variety of topics contributed by professional astronomers.
Amateur Astronomy, Education and Public Impact
StarWorlds – Astronomy and Related Organizations
http://cdsweb.u-strasbg.fr/~heck/sfworlds.htm
A searchable directory, continually updated, of organizations, institutions, associations, companies, and so on, involved in astronomy and related space sciences.
Amateur Astronomy, Education and Public Impact
Stellar Astrophysics & Research on Exoplanets (STARE)
http://www.hao.ucar.edu/public/research/stare/stare.html
STARE uses precise time-series photometry to search for extrasolar giant planets transiting their parent stars. An important byproduct of STARE will be an unusually complete survey of variable stars within its selected fields-of-view.
Meteors
Solar System
Strasbourg Astronomical Data Centre MediaTheque
http://cdsweb.u-strasbg.fr/mediatheque/
Strasbourg astronomical Data Centre's collection of modern media (software, audio, video) offering material related to astronomy and space sciences.
Amateur Astronomy, Education and Public Impact
Strasbourg Astronomical Observatory
http://astro.u-strasbg.fr/Obs-e.html
Specific links
National Astronomy
Stratospheric Ozone - An Electronic Textbook
http://see.gsfc.nasa.gov/edu/SEES/strat/class/S_class.htm
An extensive introduction to the Earth's ozone layer, its morphology, measurement, and interactions with radiation.
Earth's Atmosphere
Earth
Stratospheric Processes and Their Role in Climate (SPARC)
http://www.aero.jussieu.fr/~sparc/
Set up by the World Climate Research Programme in 1992 to help the stratospheric research community focus on issues of particular interest to climate.
Earth's Atmosphere
Earth
Structure of the Universe
http://www.seas.columbia.edu/~ah297/un-esa/universe/
An extensive review on the history of cosmological and atomic ideas, the fundamental forces, as well as the large scale structure of the universe.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Students for the Exploration and Development of Space (SEDS)
http://www.seds.org/
An independent, student-based organization which promotes the exploration and development of space. SEDS pursues this mission by educating people about the benefits of space, by supporting a network of interested students, and other projects.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Subaru Telescope
http://SubaruTelescope.org/
Telescopes
National Astronomy
Sun Picture List
http://seds.lpl.arizona.edu/billa/tnp/pxsol.html
Links to pictures and movies of the Sun at various wavelengths.
Amateur Astronomy, Education and Public Impact
Sun Picture List
http://seds.lpl.arizona.edu/billa/tnp/pxsol.html
Links to pictures and movies of the Sun at various wavelengths.
Solar Observation
Sun
Sun-Earth Connection Education Forum
http://sunearth.gsfc.nasa.gov/
Shares the discoveries and knowledge from NASA Sun-Earth Connection missions and research programs with educators, students, and the general public.
Astronomical Education
Amateur Astronomy, Education and Public Impact
SunAngle
http://susdesign.com/sunangle/
SunAngle is an on-line tool that calculates solar angles and related information for a given location, date, and time. (Requires JavaScript).
Co-ordinates, Time and Motion
Swedish ESO Submillimetre Telescope SEST
http://www.ls.eso.org/lasilla/Telescopes/SEST/SEST.html
Telescopes
National Astronomy
Terra
http://eos-am.gsfc.nasa.gov/
The flagship in NASA's Earth Observing System (EOS).
Earth Systems Science
Earth
Terrestrial Impact Craters
http://www.lpi.usra.edu/publications/slidesets/craters.html
An essay on impact craters, featuring many images of examples.
Comets
Solar System
Terrestrial Planet Finder (TPF)
http://planetquest.jpl.nasa.gov/TPF/tpf_index.html
A NASA mission to study all aspects of planets outside our solar system. TPF will take the form of either a coronagraph operating at visible wavelengths or a large-baseline interferometer operating in the infrared.
Meteors
Solar System
The @stro pages - astronomy and space for the amateur
http://theastropages.com/
Contains how-to's in the form of various tutorials and articles, as well as a place for amateurs to share ideas via discussion boards.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
The 123 Reported Interstellar and Circumstellar Molecules
http://www.cv.nrao.edu/~awootten/allmols.html
Interstellar Medium
The American Association of Amateur Astronomers
http://www.corvus.com/
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
The Antique Telescope Society
http://www1.tecs.com/oldscope/
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
The Astrobiology Index
http://www.lyon.edu/webdata/users/dthomas/astrobiology/
A collection of links to a wide variety of web-sites and articles related to astrobiology.
Earth
The Astrobiology Web
http://www.astrobiology.com/
Earth
The Astrobiology Web
http://www.astrobiology.com/
Astronomical Education
Amateur Astronomy, Education and Public Impact
The Astronomer
http://www.theastronomer.org/index.html
Astronomical Publications
The Astronomer Magazine
http://www.theastronomer.org/index.html
A magazine for the advanced amateur.
Amateur Astronomy, Education and Public Impact
The Astronomy Cafe
http://itss.raytheon.com/cafe/cafe.html
Featuring an archive of 3000 'ask an astronomer' questions, as well as a description of the anatomy of a research paper.
Astronomical Education
Amateur Astronomy, Education and Public Impact
The Best of SOHO Images
http://sohowww.nascom.nasa.gov/bestofsoho/
A collection of images obtained by the Solar and Heliospheric Observatory satellite.
Amateur Astronomy, Education and Public Impact
The Blazar Times
http://www.aoc.nrao.edu/~trector/blazar/
An electronic newsletter dedicated to research on the BL Lac and blazar phenomena, observationally as well as theoretically.
Active Galaxies, Quasars and Galactic Nuclei
Galaxies
The British Antarctic Survey
http://www.antarctica.ac.uk/
An institute of the Natural Environment Research Council, the BAS undertakes the majority of Britain's scientific research on and around the Antarctic continent.
Earth
The British Atmospheric Data Centre (BADC)
http://badc.nerc.ac.uk/home/
Earth's Atmosphere
Earth
The Cepheid Distance Scale: A History
http://institute-of-brilliant-failures.com/
A critical review of the Cepheid distance scale, from its inception to the Hipparcos mission and beyond.
Astrometry
Co-ordinates, Time and Motion
The Climate Diagnostics Center
http://www.cdc.noaa.gov/
The mission of the Climate Diagnostics Center (CDC) is to identify the nature and causes for climate variations on time scales ranging from a month to centuries.
Earth's Atmosphere
Earth
The Consolidated Lunar Atlas
http://www.lpi.usra.edu/research/cla/menu.html
A collection of the best photographic images of the moon.
Amateur Astronomy, Education and Public Impact
The Consolidated Lunar Atlas
http://www.lpi.usra.edu/research/cla/menu.html
A collection of the best photographic images of the moon.
Planetary Physics
Solar System
The Constellations
http://www.dibonsmith.com/menu.htm
Data tables and graphics for all the constellations.
Constellations and Asterisms
Stars
The Cosmic Mirror
http://www.astro.uni-bonn.de/~dfischer/mirror/
Amateur Astronomy, Education and Public Impact
The Cosmological Constant
http://nedwww.ipac.caltech.edu/level5/Carroll/frames.html
An Annual Reviews article on the cosmological constant.
Cosmological Models and Concepts
Cosmology
The Dome of the Sky
http://einstein.stcloudstate.edu/Dome/
Astronomy news, plus an interactive planetarium showing a clickable guide to the night sky above various cities throughout the year.
Amateur Astronomy, Education and Public Impact
The Dynamics of Cosmic Flows
http://nedwww.ipac.caltech.edu/level5/Dekel/frames.html
An Annual Reviews article on large-scale dynamics.
Cosmological Models and Concepts
Cosmology
The Earth Orientation Department of the US Naval Observatory
http://maia.usno.navy.mil/eo/
Determines and predicts the time-varying alignment of the Earth's terrestrial reference frame with respect to the celestial reference frame. The Earth Orientation Parameters (EOP) determined are the coordinates of the Earth's pole, the rotation angle about the pole, precession, and nutation.
Positional Concepts
Co-ordinates, Time and Motion
The Electronic Astrobiology Newsletter
http://www.lyon.edu/webdata/users/dthomas/marsbugs/
Information for scientists, educators and other persons interested in life sciences as they relate to planetary science and space exploration. Published weekly or quarterly in text and PDF formats.
Earth
The Evolution of Galaxies in Clusters
http://nedwww.ipac.caltech.edu/level5/Dressler/frames.html
An Annual Reviews article on the evolution of galaxies in clusters.
Groups and Clusters of Galaxies
Galaxies
The Exploration of the Earth's Magnetosphere
http://www.phy6.org/Education/Intro.html
A good general-level coverage of the Earth's magnetosphere.
Earth's Magnetosphere
Earth
The Extrasolar Planets Encyclopaedia
http://www.obspm.fr/encycl/encycl.html
Detailed news and information on the search for extrasolar planets, including a frequently updated catalog of the known exoplanets.
Meteors
Solar System
The Federation of Astronomical Societies
http://www.fedastro.org.uk/
Formed in 1974 as a union of astronomical societies, groups, and individuals. Active in astronomical education.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
The Formation of Binary Stars
http://www.phys.lsu.edu/astro/nap98/bf.final.html
A science article with embedded QuickTime movies, investigating whether binaries can form by spontaneous fission of rapidly rotating protostars.
Binary Stars
Stars
The Galaxy Catalog
http://www.astro.princeton.edu/~frei/galaxy_catalog.html
A collection of digital images of over 100 nearby galaxies. Images taken in several passbands and a color-composite image are included for each galaxy.
Amateur Astronomy, Education and Public Impact
The Galileo Project, Rice University
http://es.rice.edu:80/ES/humsoc/Galileo/
Galileo
History and Archaeoastronomy
The Heliosphere and Local Interstellar Medium
http://web.mit.edu/space/www/helio.review/axford.suess.html
Interstellar Medium Models and Concepts
Interstellar Medium
The Hipparcos and Tycho Catalogues
http://astro.estec.esa.nl/Hipparcos/catalog.html
Astrometric data from the Hipparcos satellite.
Astrometry
Co-ordinates, Time and Motion
The Hipparcos Space Astrometry Mission
http://astro.estec.esa.nl/Hipparcos/
Hipparcos was the European Space Agency's astrometry satellite that operated from 1989 to 1993. The final Hipparcos Catalogue (120 000 stars with 1 milliarcsec level astrometry) and the final Tycho Catalogue (more than one million stars with 20-30 milliarcsec astrometry and two-colour photometry) were published in 1997.
Astrometry
Co-ordinates, Time and Motion
The International Celestial Reference Frame
http://rorf.usno.navy.mil/ICRF/
Adopted by the International Astronomical Union as the fundamental celestial reference frame, replacing the FK5 optical frame as of 1 January 1998.
Positional Concepts
Co-ordinates, Time and Motion
The Interstellar Medium
http://espg.sr.unh.edu/tof/Outreach/Interstellar/index.html?Interdepth.html
An educational page discussing the interstellar medium.
Astronomical Education
Amateur Astronomy, Education and Public Impact
The Interstellar Medium
http://www.physics.gmu.edu/classinfo/astr103/CourseNotes/ECText/ch16_txt.htm
Course notes on the interstellar medium from George Mason University.
Interstellar Medium Models and Concepts
Interstellar Medium
The Interstellar Medium
http://espg.sr.unh.edu/tof/Outreach/Interstellar/index.html?Interdepth.html
An educational page discussing the interstellar medium.
Interstellar Medium
The MACHO project
http://wwwmacho.mcmaster.ca/
The MACHO Project aims to test the hypothesis that a significant fraction of the dark matter in the halo of the Milky Way is made up of objects like brown dwarfs or planets, ie MACHOs – Massive Compact Halo Objects.
Cosmology
The Magnetopause
http://www-spc.igpp.ucla.edu/ssc/tutorial/magnetopause.html
A review of the magnetopause, the interface between the shocked solar wind in the magnetosheath and the geomagnetic field and plasma in the magnetosphere.
Earth's Magnetosphere
Earth
The Magnetosphere
http://ssdoo.gsfc.nasa.gov/education/lectures/magnetosphere.html
A non-technical introduction to the Earth's magnetosphere.
Earth's Magnetosphere
Earth
The Magnetosphere
http://www-spc.igpp.ucla.edu/ssc/tutorial/magnetosphere.html
A detailed introduction to the magnetosphere of the Earth, and other solar system bodies.
Earth's Magnetosphere
Earth
The Met Office
http://www.metoffice.gov.uk/
As well as weather forecasting, the UK Met Office is also involved in studying the impacts of the weather on the environment, and environmental sciences such as hydrology and oceanography.
Earth's Atmosphere
Earth
The Meteoritical Society
http://www.uark.edu/campus-resources/metsoc/index1.htm
An international non-profit organization devoted to the study of meteorites and other samples of extraterrestrial matter and their relation to the origin and history of the solar system. Areas of interest include asteroids, comets, craters, interplanetary dust, interstellar medium, Lunar samples, meteorites, meteors, natural satellites, planets, and tektites.
Comets
Solar System
The Milky Way and Other Galaxies
http://www.maa.mhn.de/Scholar/galaxies.html
A set of teaching notes covering the structure of our Galaxy, the characteristics of other galaxies and finding distances to other galaxies.
Galaxies
The Milky Way Galaxy
http://www.seds.org/messier/more/mw.html
Milky Way Galaxy
Galaxies
The Milky Way Galaxy, from An Atlas of the Universe
http://www.anzwers.org/free/universe/galaxy.html
Milky Way Galaxy
Galaxies
The Mythology of the Constellations
http://www.emufarm.org/~cmbell/myth/myth.html
The mythology behind the major constellations of the western classification.
Constellations and Asterisms
Stars
The Nature of the Stars
http://www.astro.uiuc.edu/~kaler/sow/star_intro.html
A popular-level introduction to the various forms of star.
Stars
The Natures of the Stars
http://www.astro.uiuc.edu/~kaler/sow/star_intro.html
A popular-level introduction to the various forms of star.
Astronomical Education
Amateur Astronomy, Education and Public Impact
The Net Advance of Physics
http://web.mit.edu/redingtn/www/netadv/
Meta-site providing indexed links to articles (many from arXiv.org) on a variety of physics and astronomy topics.
Amateur Astronomy, Education and Public Impact
The Night Sky in the World
http://www.lightpollution.it/dmsp/
Satellite monitoring of the artificial night sky brightness and stellar visibility.
Public Impact of Astronomy
Amateur Astronomy, Education and Public Impact
The Nine Planets
http://www.seds.org/nineplanets/nineplanets/nineplanets.html
A multimedia tour of the solar system. The Nine Planets is an overview of the history, mythology, and current scientific knowledge of each of the planets and moons in the solar system.
Planetary Physics
Solar System
The Observatory Magazine
http://www.theastronomer.org/index.html
Astronomical Publications
The Official String Theory Website
http://superstringtheory.com/
A very well-designed website giving a discussion of string theory on a variety of levels.
Astronomical Education
Amateur Astronomy, Education and Public Impact
The Open Directory Project – Astronomy
http://dmoz.org/Science/Astronomy/
Amateur Astronomy, Education and Public Impact
The Ozone Hole Tour
http://www.atm.ch.cam.ac.uk/tour/
A multimedia presentation from the Cambridge Centre for Atmospheric Science.
Earth's Atmosphere
Earth
The Pioneer Venus Mission
http://www-spc.igpp.ucla.edu/ssc/tutorial/pvo_mission.html
This review concentrates mainly on the results of orbiter observations of Venus, especially those of relevance to the interpretation of data on the upper atmosphere, ionosphere and solar wind interaction with Mars.
Planetary Physics
Solar System
The Planetary Society
http://www.planetary.org/
The Society is a nonprofit, nongovernmental organization, founded in 1980 to encourage the exploration of our solar system and the search for extraterrestrial life.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
The Planetary Society
http://www.planetary.org/
The Society is a nonprofit, nongovernmental organization, founded in 1980 to encourage the exploration of our solar system and the search for extraterrestrial life.
Earth
The Project Apollo Archive
http://www.apolloarchive.com/
An online reference source and repository of digital images pertaining to the historic manned lunar landing program.
Planetary Physics
Solar System
The Quest for Extraterrestrial Intelligence, Carl Sagan
http://www.bigear.org/vol1no2/sagan.htm
Carl Sagan's essay on the importance of SETI.
Earth
The Radio Optical Reference Frame (RORF)
http://rorf.usno.navy.mil/rorf.shtml
An astrometric quasi-inertial radio reference frame, based on the radio positions of strong extragalactic radio sources such as quasars and radio galaxies.
Positional Concepts
Co-ordinates, Time and Motion
The Royal Meteorological Society
http://www.royal-met-soc.org.uk/
Advances and promotes the science of meteorology (including climatology, hydrology, physical oceanography and other related disciplines).
Earth's Atmosphere
Earth
The Salopian Web
http://www.r-clarke.org.uk/
Regularly updated pages with plenty of information for budding astronomers. Includes a night-sky guide, star charts, information on choosing a telescope, an astronomical dictionary, plus links and software downloads.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
The Salopian Web Astronomy Links
http://www.r-clarke.org.uk/astrolinks.htm
Amateur Astronomy, Education and Public Impact
The Scientific Case for Planck
http://astro.estec.esa.nl/Planck/report/redbook/science-list.htm
Cosmology
The Search for the Extrasolar Planets
http://www.public.asu.edu/~sciref/exoplnt.htm
A brief history of the search for extrasolar planets, the findings and the future implications.
Meteors
Solar System
The Shape of the Milky Way
http://users.erols.com/arendt/Galaxy/mw.html
Movies (requiring Java) of the Milky Way in a variety of wavebands.
Milky Way Galaxy
Galaxies
The Solar and Heliospheric Observatory (SOHO)
http://sohowww.nascom.nasa.gov/
A joint ESA-NASA satellite carrying a variety of instruments to observe the solar interior, atmosphere, and wind.
Solar Observation
Sun
The Solar Interior
http://science.msfc.nasa.gov/ssl/pad/solar/interior.htm
A brief introduction to the solar interior from Marshall Space Flight Center Solar Physics.
Solar Interior
Sun
The Solar Photosphere
http://science.msfc.nasa.gov/ssl/pad/solar/surface.htm
A brief introduction to the solar photosphere from Marshall Space Flight Center Solar Physics.
Solar Atmosphere
Sun
The Solar Wind Interaction with the Earth's Magnetosphere: A Tutorial (PDF)
http://www-spc.igpp.ucla.edu/ssc/tutorial/solwind_interact_magsphere_tutorial.pdf
Solar Heliosphere and Cosmic Rays
Sun
The Solar Wind Interaction with the Earth's Magnetosphere: A Tutorial (PDF)
http://www-spc.igpp.ucla.edu/ssc/tutorial/solwind_interact_magsphere_tutorial.pdf
Earth's Magnetosphere
Earth
The Structure of the Milky Way
http://casswww.ucsd.edu/public/tutorial/MW.html
Milky Way Galaxy
Galaxies
The Submillimeter Wave Astronomy Satellite (SWAS)
http://cfa-www.harvard.edu/swas/
SWAS is a NASA Small Explorer Project designed to study the chemical composition of interstellar gas clouds. It was launched in late 1998. The primary objective is to survey water, molecular oxygen, carbon, and isotopic carbon monoxide emission in a variety of galactic star forming regions.
Interstellar Medium
The Telescope Review Web Site
http://www.scopereviews.com/
Reviews of and general advice on telescopes available for the amateur astronomer.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
The UK Astrobiology Forum and Network
http://astrobiology.rl.ac.uk/
Earth
The Virgo Cluster
http://nedwww.ipac.caltech.edu/level5/Binggeli/frames.html
Proceedings of a Ringberg workshop on the Virgo cluster.
Groups and Clusters of Galaxies
Galaxies
The Virgo Consortium
http://star-www.dur.ac.uk/~frazerp/virgo/virgo.html
Numerical simulations of cosmological phenomena.
Cosmological Phenomena
Cosmology
The Virtual Sun
http://www.astro.uva.nl/demo/sun/kaft.htm
Astronomical Education
Amateur Astronomy, Education and Public Impact
The Virtual Sun
http://www.astro.uva.nl/demo/sun/kaft.htm
Sun
The Washington Double Star Catalog
http://ad.usno.navy.mil/wds/wds.html
A database of astrometric double and multiple star information. The WDS Catalog contains positions, discoverer designations, epochs, position angles, separations, magnitudes, spectral types, proper motions, and, when available, Durchmusterung numbers and notes.
Binary Stars
Stars
The Web Nebulae
http://seds.lpl.arizona.edu/billa/twn/
Images of and information on some of the most photogenic astronomical nebulae.
Amateur Astronomy, Education and Public Impact
The Webb Society
http://www.webbsociety.freeserve.co.uk/
An international society of amateur and professional astronomers specializing in the observation of double stars and 'deep sky' objects, founded in 1967. Membership open to anyone who shares the interests of the Society.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
Theoretical Astrophysics Program, University of Arizona
http://www.astrophysics.arizona.edu
General sites
Theory
Theoretical Physics Fun
http://www.theory.caltech.edu/people/patricia/tphys.html
Public-level pages on relativity and superstrings.
Astronomical Education
Amateur Astronomy, Education and Public Impact
This Dynamic Earth: the Story of Plate Tectonics
http://pubs.usgs.gov/publications/text/dynamic.html
A US Geological Survey overview booklet.
Planetary Dynamics
Earth
Timelines and Scales of Measurement Page
http://www.astro.psu.edu/users/niel/scales/scales.html
Timelines for the history of science and technology, as well as geology and cosmology. Also a collection of measurement scales, from small to large, for a variety of quantities.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Tornado and Storm Research Organisation (TORRO)
http://www.torro.org.uk/
A British-based independent organization, involved mainly in data collection, site investigations and climatological research.
Earth's Atmosphere
Earth
Tornado and Storm Research Organisation (TORRO)
http://www.torro.org.uk/
A British-based independent organization, involved mainly in data collection, site investigations and climatological research.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
Total Ozone Mapping Spectrometer (TOMS)
http://toms.gsfc.nasa.gov/
Provides access to atmospheric measurements taken from a variety of satellites.
Earth's Atmosphere
Earth
Trace Images
http://vestige.lmsal.com/TRACE/Science/ScientificResults/trace_cdrom/html/trace_images.html
Image Sites
Transition Region and Coronal Explorer (TRACE)
http://vestige.lmsal.com/TRACE/
The Transition Region and Coronal Explorer is a NASA Small Explorer (SMEX) mission to image the solar corona and transition region at high angular and temporal resolution. The project maintains an Open Data Policy.
Solar Observation
Sun
Transition Region and Coronal Explorer (TRACE) Education Pages
http://vestige.lmsal.com/TRACE/Public/eduprodu.htm
Providing the general public, and specifically students and their teachers, with some tools to learn more about the Sun and about the TRACE satellite program.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Type Ia Supernovae as Standard Candles
http://nedwww.ipac.caltech.edu/level5/Branch2/frames.html
An Annual Reviews article on the use of type Ia supernovae as distance indicators.
Stars
UCL Institute of Astrobiology
http://www.astrobiology.ucl.ac.uk/
Earth
UCL list
http://www.star.ucl.ac.uk/astro_info.html#observ
Observatories
National Astronomy
UCMP Geology Exhibit
http://www.ucmp.berkeley.edu/exhibit/geology.html
University of California, Berkeley, Museum of Paleontology overview of geological history.
Geophysics
Earth
UK Dark Matter Consortium
http://hepwww.rl.ac.uk/ukdmc/ukdmc.html
The UK Dark Matter Collaboration is a consortium of astrophysicists and particle physicists, conducting experiments with the ultimate goal of detecting rare scattering events which would occur if the Galactic dark matter consists largely of a new heavy neutral particle, a 'neutralino' or 'WIMP'.
Cosmology
Ulysses
http://ulysses.jpl.nasa.gov/
Ulysses is a joint ESA/NASA mission to study interplanetary space at high solar latitudes. It was launched in 1990.
Solar Observation
Sun
Universe Today
http://www.universetoday.com/
Space news from around the Internet, updated every weekday.
Amateur Astronomy, Education and Public Impact
University College London
http://www.star.ucl.ac.uk/
Universities
National Astronomy
University College London, Dept. of Physics and Astronomy
http://www.phys.ucl.ac.uk/
UK
National Astronomy
University of Cambridge, Cavendish Astrophysics Group
http://www.mrao.cam.ac.uk
General sites
Theory
University of London Observatory
http://www.ulo.ucl.ac.uk/
Specific links
National Astronomy
University of London Observatory
http://www.ulo.ucl.ac.uk/
A teaching observatory, part of University College London.
Astronomical Education
Amateur Astronomy, Education and Public Impact
University of New Hampshire Experimental Space Plasma Group
http://espg.sr.unh.edu/
Interstellar Medium
University of New South Wales, Dept. of Astrophysics and Optics
http://newt.phys.unsw.edu.au/astro/
Australia
National Astronomy
University of Tokyo, Dept. of Astronomy
http://www.astron.s.u-tokyo.ac.jp/
Japan
National Astronomy
University of Tokyo, Theoretical Astrophysics Group
http://www-utap.phys.s.u-tokyo.ac.jp/index-e.html
Japan
National Astronomy
US Naval Observatory Astrometry Department
http://ad.usno.navy.mil/
The Astrometry Department of the U.S. Naval Observatory (USNO) is responsible for the determination of the positions and motions of stars and solar system objects and the establishment of celestial reference frames.
Astrometry
Co-ordinates, Time and Motion
USGS Flagstaff Solar System Browser
http://wwwflag.wr.usgs.gov/USGSFlag/Space/wall/wall.html
A clickable guide to the properties of the major bodies of the Solar System.
Astronomical Education
Amateur Astronomy, Education and Public Impact
USGS Flagstaff Solar System Browser
http://wwwflag.wr.usgs.gov/USGSFlag/Space/wall/wall.html
A clickable guide to the properties of the major bodies of the Solar System.
Solar System
USGS Flagstaff Solar System Browser
http://wwwflag.wr.usgs.gov/USGSFlag/Space/wall/wall.html
A clickable guide to the properties of the major bodies of the Solar System.
Solar System
USGS Global Visualization Viewer
http://glovis.usgs.gov/
A clickable map of the Earth from space, linked to Landsat images of each region.
Amateur Astronomy, Education and Public Impact
USGS Global Visualization Viewer
http://glovis.usgs.gov/
A clickable map of the Earth from space, linked to Landsat images of each region.
Earth Systems Science
Earth
USNO Pulsar Data Archive
http://tycho.usno.navy.mil/pulsar.html
Stars
Very Large Telescope Interferometer
http://www.eso.org/projects/vlti/
General Sites
Instrumentation and Observational Techniques
Very Large Telescope VLT, Paranal
http://www.eso.org/projects/vlt/
Telescopes
National Astronomy
Views of the Solar System
http://www.solarviews.com/
A multimedia guide to the bodies of the solar system.
Solar System
Views of the Solar System
http://www.solarviews.com/
A multimedia guide to the bodies of the solar system.
Solar System
Violence in the Cosmos
http://csep10.phys.utk.edu/guidry/violence/violence-root.html
A popular-level lecture on the role of explosive processes in the evolution of the universe.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Virginia Institute of Theoretical Astronomy
http://www.astro.virginia.edu/VITA
General sites
Theory
Virtual Library Abstracts list
http://www.astroweb.com.ar
Astronomical Publications
Virtual Library Index
http://www.astroweb.com.ar
Other Resources
Virtual Library Index
http://www.astroweb.com.ar
Databases
Virtual Library Index
http://www.astroweb.com.ar
Astronomical Surveys
Virtual Library Index
http://www.astroweb.com.ar
Image Sites
Virtual Library Index
http://www.astroweb.com.ar
General sites
National Astronomy
Virtual Library Index
http://www.astroweb.com.ar
Libraries
National Astronomy
Virtual Library list of amateur societies
http://www.astroweb.com.ar
Amateur astronomy
National Astronomy
Virtual Library Preprints list
http://www.astroweb.com.ar
Astronomical Publications
Virtual Library Publications list
http://www.astroweb.com.ar
Astronomical Publications
Virtual Library Software list
http://www.astroweb.com.ar
Software
Instrumentation and Observational Techniques
Visual Satellite Observer's Home Page
http://www.satellite.eu.org/satintro.html
Why, when and what to look for as regards satellites in the night sky.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
Visual Trips to Black Holes and Neutron Stars
http://antwrp.gsfc.nasa.gov/htmltest/rjn_bht.html
MPEG Movies and images simulating the distortion effects due to general relativity that occur in the vicinity of black holes and neutron stars. Explanations of the physics behind the effects are provided. (Movies may not display correctly in some browsers, but can be downloaded).
Stars
Visual Trips to Black Holes and Neutron Stars
http://antwrp.gsfc.nasa.gov/htmltest/rjn_bht.html
MPEG Movies and images simulating the distortion effects due to general relativity that occur in the vicinity of black holes and neutron stars. Explanations of the physics behind the effects are provided. (Movies may not display correctly in some browsers, but can be downloaded).
Amateur Astronomy, Education and Public Impact
VLT Images of Star Clusters
http://www.eso.org/outreach/info-events/ut1fl/astroim-staclu.html
Press releases from the Very Large Telescope.
Stellar Populations and Star Clusters
Stars
Webb Society
http://www.webbsociety.freeserve.co.uk/
Amateur astronomy
National Astronomy
Webcrawler - astronomy
http://www.webcrawler.com/cgi-bin/WebQuery?searchText=astronomy
General search Engines
Webcrawler - astrophysics
http://www.webcrawler.com/cgi-bin/WebQuery?searchText=astrophysics
General search Engines
WebStars – Astrophysics in Cyberspace
http://heasarc.gsfc.nasa.gov/docs/www_info/webstars.html
A list of astronomical resource sites for those with a general interest in astronomical topics.
Amateur Astronomy, Education and Public Impact
Whispers from the Cosmos
http://archive.ncsa.uiuc.edu/Cyberia/Bima/BimaHome.html
A multimedia presentation on radio astronomy, in particular the work of the Berkeley Illinois Maryland Association (BIMA) synthesis array.
Amateur Astronomy, Education and Public Impact
Windows to the Universe
http://www.windows.ucar.edu/
A user-friendly learning system on the Earth and Space sciences for the use of the general public. Appropriate for use in libraries, museums, schools, homes, and the workplace. Written in three reading levels approximating elementary, middle school and high school reading levels.
Astronomical Education
Amateur Astronomy, Education and Public Impact
World Data Centre for Solar-Terrestrial Physics, Chilton
http://www.wdc.rl.ac.uk/
Holds a wide range of solar-terrestrial physics data, including an extensive collection of ionospheric data ranging from the early 1930s to the present day.
Earth Systems Science
Earth
World Meteorological Organization (WMO)
http://www.wmo.ch/
The science branch of the United Nations dealing with the state and behaviour of the Earth's atmosphere and climate.
Earth's Atmosphere
Earth
World's largest optical telescopes
http://www.seds.org/billa/bigeyes.html
Observatories
National Astronomy
X-Ray Emission from Clusters of Galaxies
http://nedwww.ipac.caltech.edu/level5/March02/Sarazin/frames.html
Craig Sarazin's classic review on the X-ray emission for galaxy clusters.
Groups and Clusters of Galaxies
Galaxies
X-Ray Imaging Observations of Clusters of Galaxies
http://nedwww.ipac.caltech.edu/level5/Forman/frames.html
An Annual Reviews article on X-ray observations of galaxy clusters.
Groups and Clusters of Galaxies
Galaxies
X-Ray Spectra of Clusters and Groups
http://lheawww.gsfc.nasa.gov/~richard/Wurzburg.html
Groups and Clusters of Galaxies
Galaxies
X-Ray WWW Server, Uppsala University
http://xray.uu.se/
Provides links to information about X-ray research, including conferences, synchrotron radiation laboratories, and other X-ray related Web or FTP sites.
Amateur Astronomy, Education and Public Impact
X-Rays from Normal Galaxies
http://nedwww.ipac.caltech.edu/level5/Sept01/Fabbiano/frames.html
An Annual Reviews article on X-rays from normal galaxies.
Galaxies
Yahoo astronomy pages
http://dir.yahoo.com/Science/Astronomy/
General search Engines
Yahoo Astronomy Pages
http://dir.yahoo.com/Science/Astronomy/
Amateur Astronomy, Education and Public Impact
Yahoo Space links
http://dir.yahoo.com/Science/Space/Institutes/
General Sites
Space Missions
Yale Astrometry Group
http://www.astro.yale.edu/astrom/
Astrometry
Co-ordinates, Time and Motion
Yellow pages
http://www.journals.uchicago.edu/AAS/ypages//yp.html
Astronomical Publications
Yohkoh images
http://www.lmsal.com/YPOP/homepage.html
Image Sites
Yohkoh Public Outreach Project
http://www.lmsal.com/YPOP/homepage.html
The Yohkoh satellite is an observatory for studying X-rays and gamma-rays from the Sun.
Amateur Astronomy, Education and Public Impact
Yohkoh Public Outreach Project
http://www.lmsal.com/YPOP/homepage.html
The Yohkoh satellite is an observatory for studying X-rays and gamma-rays from the Sun.
Astronomical Education
Amateur Astronomy, Education and Public Impact
Yohkoh Solar Observatory
http://isass1.solar.isas.ac.jp/~sxt_co/
Yohkoh ("Sunbeam") is a project of the Japanese Institute of Space and Astronautical Science (ISAS). The scientific objective has been to observe the energetic phenomena taking place on the Sun, specifically solar flares in X-ray and gamma-ray emissions.
Solar Observation
Sun
Yonsei University, Dept. of Astronomy
http://galaxy.yonsei.ac.kr/
Korea
National Astronomy
Your Sky
http://www.fourmilab.ch/yoursky/
An interactive planetarium of the Web, producing sky maps for any time and date, viewpoint, and observing location.
Amateur Astronomy
Amateur Astronomy, Education and Public Impact
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