"Stellarium is a free GPL software which renders realistic skies
in real time with openGL. It is available for Linux/Unix, Windows
and MacOSX. With Stellarium, you really see what you can see with
your eyes, binoculars or a small telescope.
"After reading a NewsForge article with title Open source
software looks skyward, I was intrigued with this software and
wondering how difficult it is to build RPM package for Fedora Core