Astronomy Web Resources
General Astronomy Sites
- Sky and Telescope Magazine
- The Astronomy Cafe – "A web site for the astronomically disadvantaged"
- SEDS – Students for the Exploration and Development of Space. Check out the Wiki
- Astronomy Answers – based in Utrecht University, the Netherlands
What's in the sky tonight?
- The sky this week – from Sky and Telescope Magazine
- Spaceweather – find out what's happening today in our part of the solar system
- SOHO – daily images of the sun from the Solar and Heliospheric Observatory
- NASA satellite tracking – find out when the space station & other satellites are visible
- Monthly Sky Tour – maintained by the Space Telecope Science Institute
Pictures
- APOD – Astronomy Picture of the Day. 10 years of archived images & descriptions.
- Hubblesite – Hubble Space Telescope images, animations, tutorials, etc.
- Sloan Digital Sky Survey – Sky Server lets you access 80 million stars, galaxies & quasars!
Stars, Constellations, and Star Charts
- Sky Maps – free monthly star chart and sky guide.
- Star Tales – lots of folk lore. Maintained by Ian Ridpath
- Stars and constellations – Jim Kaler
- Atlas of the Universe – zoom out into the universe
- Educational Observatory – Links to professional charts, catalogs, databases
Animations, Applets, and Teacher Resources
- Nebraska Astronomy Applet Project – nicely designed applets & detailed directions
- Caltech Cool Cosmos – lots of good tutorials on everything astronomy
- Amazing Space – maintained by the Space Telecope Science Institute
- Project CLEA – Contemporary Laboratory Experiences in Astronomy (requires download, not mac friendly)
Cosmology and Relativity
- Ned Wright’s Cosmology Tutorial – self explanatory
- WMAP – NASA's Wilkinson Microwave Anisotropy Probe. Good cosmology tutorials map.
- Relativity Applets
Professional Resources and Organizations
- AAS – American Astronomical Society
- ASP – Astronomical Society of the Pacific
- ADS – Astrophysics Data System. Search professional journals.