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Software Downloads

(We welcome any suggestions for additional downloadable resources).

The Celestia Planetarium
The free space simulation that lets you explore our universe in three dimensions. Celestia runs on Windows, Linux, and Mac OS X. Go here


The Stellarium Planetarium
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. Go here


Sky Safari
is an App for Android devices (tablets and phones). It is not free but very reasonably priced and there are three versions. Go here


Solar Walk
Explore the Solar system on an IPad or IPhone. Go here