your own planetarium?

From Principled Discovery I learned that one can make your "Very own planetarium on your computer". Sounds neat to me! The place to go is called Stellarium.

From their website

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.
It is being used in planetarium projectors. Just set your coordinates and go.