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Sky Map - Sky Map (formerly the Google Sky Map) turns your Android-powered mobile phone into a window on the...
Stellarium - Stellarium is a free open source planetarium for your computer.
Star Walk - Star Walk – Sky View: Explore the Stars.
KStars - KStars is a Desktop Planetarium for KDE.
SkySafari - SkySafari is a powerful planetarium that fits in your pocket.
Celestia - Real-time 3D visualization of space