[Osiris]

Source View the stars in Linux with Stellarium

If you are learning about the stars in school, an amateur sky watcher, or a meteorologist in the making you need to know your stars. To really see the stars you can visit a real planetarium, you can break out your serious telescope, or you can install and fire up a desktop application like Stellarium.
Stellarium is a free, open source planetarium for your desktop. It displays a 3D image of the sky – what you would see with the naked eye – but allows you to click on specific stars to see detailed information about that star. You can view the sky from any where in the world and works with Linux, Mac, and Windows. You can run a moving, 3D representation to serve as an educational tool through a projector, or you can sit back and watch from the comfort of your own desk.

[hikaricloud]

This program has been around for ages...did it just come out for Linux or something?

[Saxon]

It's been in the FreeBSD ports tree for a loong *** time I know that.

[hikaricloud]

I remember this for OSX quite a while ago...nifty program, if nothing else.