Stellarium is a free open source planetarium for your computer. … Tiếp tục đọcStellarium

KStars is a Desktop Planetarium by KDE. It provides an accurate graphical simulation of the night sky, from any location on Earth, at any date and time. … Tiếp tục đọcKStars

Celestia – real-time 3D visualization of space … Tiếp tục đọcCelestia