Here are some astronomy links that we find useful.
- astronomyLINKS™ – A directory of astronomy links categorized by subject.
- Atmospheric Optics – A host of visual spectacles – rainbows, halos, glories, coronas and many more.
- Heavens-Above! – all the information you need to observe satellites such as the International Space Station and the Space Shuttle.
- Lunar and Planetary Science at the NSSDC – Planetary fact sheets and mission information.
- Skymaps.com – Downloadable monthly sky maps.
- Astronomy Magazine – The world’s best-selling astronomy magazine
- Sky&Telescope – Sky and Telescope Magazine – Site has some very useful interactive observing tools.
- SPACE.com — Something Amazing Every Day!
- SpaceWeather.com – News and information about the Sun-Earth environment.
- StarDate Online – Stargazing tips, almanac, constellation guide and more.
- Department Of Astronomy – The University of Wisconsin–Madison’s Department of Astronomy
- Sun, Planet, and Satellite Data – Introduction to the Solar System.
- The Nine Planets – Guide to the Solar System.
- Planetary Data System -NASA’s Planetary Data System
- Wisconsin Astronomy – Wisconsin astronomical events and organizations.
- Your Sky – Interactive planetarium program.
