Stellarium - Stellarium is a free open source planetarium for your computer.
Sky Map - Sky Map (formerly the Google Sky Map) turns your Android-powered mobile phone into a window on the...
Celestia - Real-time 3D visualization of space
Star Walk - Star Walk – Sky View: Explore the Stars.
Star Chart - Stellarium is a planetarium software that shows exactly what you see when you look up at the stars. It's easy to use, and free. Read more about Star Chart.
KStars - KStars is a Desktop Planetarium for KDE.