If you like astronomy, this is your lucky day. Celestia is an astronomy program that will allow you lots of actions in space.
You can choose if you prefer to stay in Earth or to travel throughout the Solar System, to any of over 100,000 stars and more
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You will be able to see the position of the stars in first person, do a trip seeing and visiting the planets you want,...
Celestia comes with a large catalog of stars, planets, moons, asteroids, comets, and spacecraft. If that’s not enough, you can download dozens of easy to install add-ons with more objects from the official site.
4 reviews 
Comments
that program is the best I have fun watching master things
The graphics are excellent, the only thing is that in Windows 7 it is slower than in XP and Vista.
Not bad, the graphics are good and it doesn't hang or anything. At first it is fine for me, but after a while the truth is that I get a little bored, especially going from one place to another.