Download Orbit Simulator
A physics-based satellite orbit simulator for designing space missions.
Download SpaceEngine
Free space simulation software that lets you explore the universe in three dimensions, starting from planet Earth to the most distant galaxies
Download Stellarium 0.19.3
Planetarium software
Download CyberSky 5.1.1
Personal planetarium program
Download X-Stellarium 0.13.1 [re10]
Enables you to view and navigate constellations, stars and planets in a three-dimensional environment, with multiple language support
Download Portable Stellarium 0.13.0
View planets and constellations