Add stellarium 0.5.2,

Stellarium is a free software available for Windows, Linux/Unix
and MacOSX. It renders 3D photo-realistic skies in real time.
With stellarium, you really see what you can see with your
eyes, binoculars or a small telescope.

PR: ports/61927
Submitted by: Jean-Yves Lefort <jylefort@brutele.be>