Stellarium
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.
Last windows version can be downloaded here
<package id="Stellarium" name="Stellarium" revision="%VERSION%" priority="0" reboot="false">
<variable name="VERSION" value="0.12.4" />
<check type="uninstall" condition="exists" path="Stellarium %VERSION%"/>
<install cmd="%SOFTWARE%\stellarium-%VERSION%-win32.exe /VERYSILENT"/>
<upgrade include="remove" />
<upgrade include="install" />
<remove cmd="%ProgramFiles%\Stellarium\unins000.exe /VERYSILENT"/>
</package>