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A real-time simulation of space environments.

Explore the virtual version of the solar system and other parts of the Milky Way galaxy. Observe the star, planets, asteroids, and other celestial bodies in authentically recreated environments, track specific objects, set up certain situations like solar cycles, etc.


  • Available for modifications
  • Features multiple viewing modes


  • Requires a lot of CPU and memory power
  • Developed by Celestia Development Team
  • File name: celestia-win32-1.6.1.exe (32.8 MB)
  • Latest version:
  • License: Free
  • Updated: February 07, 2021
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