View thousands of stars, moon, planets etc.
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Total: 4,391 | Last week: 1
32.77 MB
Celestia Development Team
Latest update:
May 22, 2014
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Editor's review
This real-time space simulator allows you to explore the universe in 3D, having access to all sorts of interesting information and taking a closer look to our solar system, stars, galaxies and other celestial objects.

You can use your mouse to select and display different objects like stars, moons, galaxies, comets along with some information and details about them such as distance, luminosity, diameter, class etc. or you can go to the Navigation menu and check the other options available – select objects by name or go to/track selections.

By right clicking the Sun for instance, you can select and travel toward planets, asteroids, comets like Borrelly and Halley or space crafts such as Cassini and Galileo. Moreover, you can explore the universe by simply selecting a destination from the Tour Guide’s list or using the embedded Solar System and Star browsers.

Additionally, Celestia enables you to reverse or change the simulation time, split the view window horizontally or vertically, display labels and grids (Equatorial, Galactic etc), add atmospheres and cloud shadows as well as take screenshots and record your virtual explorations as AVI files.
  • handy navigation options
  • support for scripts
  • solar/lunar eclipse finder
  • various customization options
Bottom line:
Celestia is a free yet powerful space simulation solution for exploring the universe in three dimensions and learning new interesting things about different celestial objects.
Author Description
The free space simulation that lets you explore our universe in three dimensions. Celestia runs on Windows, Linux, and Mac OS X.Unlike most planetarium software, read more...
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