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.

Changelog:
A small change was made to the Windows version which [we hope] will fix some font rendering problems some people have.

Program Information Category: Tools and Utilities Type: Free Version: 0.10.6.1 Size: 43.4MB Works on: Windows Product page: here