General astronomy links
| The British Astronomical Association | http://www.britastro.org |
| Cambridge University Astronomy Home Page | http://www.ast.cam.ac.uk/ |
| IAU Central Bureau for Astronomical Telegrams | http://www.cfa.harvard.edu/iau/cbat.html |
| The Astronomer | http://www.theastronomer.org |
| Astronomy picture of the day | http://antwrp.gsfc.nasa.gov/apod |
| Astronomy Links & Interesting Sites Beyond Planet Earth | http://jrscience.wcp.muohio.edu/html/Astronomy.html |
| NED (NASA Extragalactic Database) | http://nedwww.ipac.caltech.edu/ |
| NMSU LIBRARY (New Mexico State University) | http://lib.nmsu.edu/subject/astron/astron.html |
| e-Print archive (UK mirror site xxx.soton.ac.uk) | http://uk.arxiv.org/ |
| Yahoo astronomy links | http://dir.yahoo.com/science/astronomy |
| Multimedia Tour of the Solar System | http://astro.nineplanets.org |
Databases & catalogues
| AstroGrid (Virtual Observatory) | http://www.astrogrid.org |
| Centre de Données Stellaires (CDS) | http://cdsweb.u-strasbg.fr/CDS.html |
| National Space Science Data Center (USA) | http://nssdc.gsfc.nasa.gov |
| Astronomical Data Archives Center (Japan) | http://dbc.nao.ac.jp |
| Harvard abstracts service | http://adsabs.harvard.edu/abstract_service.html |
| The Extrasolar Planets Encyclopaedia | http://exoplanet.eu/ |
The sun, eclipses & space weather
| SOHO web site | http://sohowww.nascom.nasa.gov |
| Solar terrestrial dispatch | http://www.spacew.com |
| Detailed daily information regarding active areas on the sun | http://www.swpc.noaa.gov/ftpmenu/forecasts/SRS.html |
| Aurorae | http://www.swpc.noaa.gov/Aurora |
| Space Weather Prediction Center | http://www.swpc.noaa.gov |
| Space weather | http://www.spaceweather.com |
| NASA eclipse home page | http://eclipse.gsfc.nasa.gov/eclipse.html |
| Summary of eclipse-related material | http://eclipse.im |
Comets & meteors
| Latest IAU comet ephemerides | http://www.cfa.harvard.edu/iau/Ephemerides/Comets |
| Comets | http://cometography.com |
| Meteors | http://meteorshowersonline.com |
| International Meteor Organisation | http://www.imo.net |
Minor planets (asteroids)
| IAU Minor Planet Center | http://www.cfa.harvard.edu/iau/mpc.html |
| Latest MPC ephemerides of asteroids and comets | http://www.cfa.harvard.edu/iau/MPEph/MPEph.html |
| Lowell Observatory | http://asteroid.lowell.edu |
| Solar System Dynamics online tools | http://ssd.jpl.nasa.gov/?tools |
| Near Earth object confirmation page | http://www.cfa.harvard.edu/iau/NEO/ToConfirm.html |
| The Spaceguard Centre (UK) | http://www.spaceguarduk.com/ |
Variable stars, novae, supernovae
| American Asscociation of Variable Star Observers (AAVSO) | http://www.aavso.org |
| Variable Stars South (VSS), New Zealand | http://www.varstars.org |
| Supernovae | http://www.supernovae.net/supernova.html |
| The Astronomer | http://www.theastronomer.org |
Artificial satellites
| Satellite visibility | http://www.heavens-above.com |
Atmospheric phenomena
| Atmospheric phenomena | http://www.atoptics.co.uk |
Equipment
| Todd Gross equipment reviews | http://www.weatherman.com |
| Field of view calculator for (D)SLR cameras | http://www.howardedin.com/articles/fov.html |
| About telescopes | http://www.ayton.id.au/gary/Science/Astronomy/Ast_Telescope.htm |
Astronomy & space news
| Astronomy Now magazine | http://www.astronomynow.com |
| Sky & Telescope magazine | http://www.skyandtelescope.com |
| Space.com | http://www.space.com |
| European Southern Observatory (ESO) | http://http://www.eso.org/public/outreach |
| European Space Agency (ESA) | http://www.esa.int |
| National Aeronautics and Space Administration (NASA) | http://science.nasa.gov |
Astronomy book links
- Amazon has about 57,000 books on Astronomy. Good navigation by adding other Key Words and/or using New Arrivals (30 or 90 day etc) and/or Sort By categories and/or Related Searches. Some information (further down page past other adverts) and some reviews. Also some books have Look Inside feature to see some samples of book pages. Amazon astronomy
- Earth and Sky has about 30 selectable categories each with maybe 5 to 20 books (little or no information). Earth and Sky
- Cosmobrain (USA) has about 12 categories each with 20 or so books (limited information but then leads back to Amazon - see above). Cosmobrain bookstore
- Willmann-Bell (USA) has about eight groups of about 5 to 20 books each (quite a lot of information). Willmann-Bell
- Telescope Planet (USA) has about 50 random choices on list (a little information sometimes with sample page of book). Telescope Planet
- Pulsar Optical has about 20 books mixed with other software etc (some information). Pulsar Optical
- The Map Centre has about 20 books (some information). The Map Centre
- Ace Astronomical has about 12 random choices in list (no information). Ace Astronomical
- Teleskop-Service (Sweden) has only about 10 books in list (with information). Teleskop-Service
- Twitter. Newly published astronomy book titles delivered to your twitter stream on the day of their release. Join Twitter to receive updates directly or use this link: Twitter Astronomy Books

