| Astronomical Organizations (8) | Astronomy Clubs (3) |
| Astronomy Publications (3) | Favorite Software (5) |
| NASA (5) | Observatories (1) |
| On Line Shops (1) |
Favorite SoftwareSome of our favorite software
| C2A C2A - Planetarium Software | |
| Cartes du Ciel Free software to draw sky charts | |
| Skymaps.com FREE* Sky Maps Each Month For you to explore, learn and enjoy the night sky. | |
| Stellarium Stellarium is a free open source planetarium for your computer | |
| Virtual Moon Atlas Used in several books, magazines, observatories, universities and Web sites. |
