If you want astronomy, this is your lucky day. Celestia is an astronomy program which will allow you many actions in space.
If you want to live in the world or travel throughout the solar system, more than 100,000 stars and much more
You will be able to see the star position in the first person, the platform you want to see and the platform for viewing, ...
Celestia comes with a large catalog of stars, planets, moons, asteroids, comets, and spaceships. If this is not enough, you can download dozens of easy downloads to install add-ons with more objects from official sites.