Celestia is an application for real-time 3D visualization of space, with a detailed model of the solar system, over 100,000 stars, more than 10,000 galaxies, and an extension mechanism for adding more objects.
Free
Open Source
Mac OS X
Windows
Linux
celestia is a free realtime 3d space simulation, allowing unrestricted access to hundreds of thousands of stars.
celestia... 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, celestia doesn't confine you to the surface of the earth. you can travel throughout the solar system, to any of over 100,000 stars, or even beyond the galaxy.all movement in celestia is seamless; the exponential zoom feature lets you explore space across a huge range of scales, from galaxy clusters down to spacecraft only a few meters across. a 'pointandgoto' interface makes it simple to navigate through the universe to the object you want to visit.celestia is expandable. celestia comes with a large catalog of stars, galaxies, planets, moons, asteroids, comets, and spacecraft. if that's not enough, you can download dozens of easy to install addons with more objects. 3rdparty content is also available to expand the virtual universe.
Space Engine - a real-time 3D space simulator, procedural universe generator and visualiser. It lets you explore the universe in three dimensions, starting from planet Earth to the most distant galaxies.
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