Open Source Celestia AlternativesTop Star Maps and other similar apps like Celestia

The best open source alternative to Celestia is Stellarium. If that doesn't suit you, our users have ranked more than 25 alternatives to Celestia and ten of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Celestia are Gaia Sky, Cosmonium, WorldWide Telescope and Pioneer.

filter to find the best alternatives

Celestia alternatives are mainly Star Maps, but if you're looking for Exploration Games or Simulation Gamess you can filter on that. Other popular filters include Open Source. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Celestia.
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Alternatives list

  1. Stellarium icon

    Stellarium

     372 likes

    Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope.

    57 Stellarium alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • PortableApps.com
    The dance of the planets above ESO headquarters, near Munich.
     
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    2
    Comments about Stellarium as an Alternative to Celestia
    Guest
    Negative
    9

    Stellarium is a planetarium, Celestia not

    Review by a new / low-activity user.
    Guest
    Negative
    -2

    Your stuck on earth, Celestia you can explore space

    Review by a new / low-activity user.
    Celestia Icon
    Stellarium icon

    • Some users think Stellarium is a great Celestia alternative, some don't.

    • Stellarium is the most popular Windows, Mac & Linux alternative to Celestia.

    • Stellarium is the most popular Open Source & free alternative to Celestia.

    • Stellarium is Free and Open SourceCelestia is also Free and Open Source
  2. Gaia Sky icon

    Gaia Sky

     11 likes

    3D visualization software for ESA's (European Space Agency) Gaia mission to chart about 1 billion stars of the Milky Way Galaxy.

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub
    • Flatpak
    Gaia Sky screenshot 1
     
  4. Cosmonium icon

    Cosmonium

     4 likes

    Cosmonium is a 3D astronomy and space exploration program. With Cosmonium you can navigate in our solar system and discover all the planets and their moons.

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    Io transiting over Jupiter
     
  5. WorldWide Telescope icon

    WorldWide Telescope

     6 likes

    The WorldWide Telescope (WWT) is a Web 2.0 visualization software environment that enables your computer to function as a virtual telescope, bringing together imagery from the best ground and space-based telescopes in the world for a seamless exploration of the universe.

    16 WorldWide Telescope alternatives

    Cost / License

    • Free
    • Open Source

    Platforms

    • Windows
    • Online
    Main Window
     
  6. Pioneer icon

    Pioneer

     12 likes

    Pioneer is a space adventure game set in the Milky Way galaxy at the turn of the 31st century. The game is open-ended, and you are free to explore the millions of star systems in the game. You can land on planets, slingshot past gas giants, and burn yourself to a crisp flying...

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Windows
    • Linux
    Mars and Phobos (no shaders)
     
  7. Atlas of Space icon

    Atlas of Space

     1 like

    Welcome to the Atlas of Space — an interactive visualization to explore the planets, moons, asteroids, and other objects in the Solar System.

    Cost / License

    Application type

    Platforms

    • Online
    Atlas of Space screenshot 1
     

  9. Gravity Simulator

     Like

    Gravity and space simulator that allows you to learn about the gravitational force and explore and learn about space. Change the value of the gravitational constant, increase the mass of Jupiter to see how doing so would affect the solar system and much, much more!

    Cost / License

    • Free
    • Open Source

    Platforms

    • Online
     
  10. Planetario icon

    Planetario

     2 likes

    Planetario contains a 3D model of our solar system. It will show the horizon and the planets in their path along the sky. The word planet comes from the Greek planetai, meaning "wanderers". Because of the rotation of the earth, the stars seem to move in perfect...

    Cost / License

    • Free
    • Open Source

    Platforms

    • Android
    • Android Tablet
    • F-Droid
    Planetario screenshot 1
     
  11. Kosmorro icon

    Kosmorro

     1 like

    A software to calculate astronomical ephemerides.

    Cost / License

    Platforms

    • Mac
    • Linux
    • Python
    • FreeBSD
    Command line interface
     
  12. Aciqra icon

    Aciqra

     3 likes

    Aciqra (uh-SEE-kruh) is a free and open source virtual sky map and planetarium which tracks and displays astronomical bodies including planets, nebulae and stars to an accuracy of a fraction of a degree for thousands of years into both the future and the past.

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Windows
    • Linux
    • Wine
    C/2012 S1 (ISON) rising in the morning.
     
10 of 10 Celestia alternatives