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:
Bug fix release.
Fixed unpredictable openGL related crashes on win32.
Fixed run on MacOSX Tiger/Leopard/Snow Leopard.
Disable OpenGL shaders by default for stars and atmosphere. User activate it by setting use_glshaders = true in the [main] section of the config.ini
Fixed the handling of the Qt -graphicssystem parameter. Now it is ignored if it is not used properly.
Improved OpenGLES2 support (not finished yet).
Added Qt widgets flags on the main windows to avoid filling background (this boosted the program a lot on linux).

Program Information Category: Tools and Utilities Type: Free Version: 0.10.4 Size: 45.7MB Works on: Windows Product page: here