• Celestia
  Celestia, a real-time 3D space simulation featuring a database of over 100,000 stars, nearly a hundred solar system, objects, and a complete catalog of extrasolar planets.
  Celestia, a real-time 3D space simulation featuring a database of over 100,000 stars, nearly a hundred solar system, objects, and a complete catalog of extrasolar planets.
  astronomy celestia extrasolar opengl planets simulation solar space system
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