Translation(s): English - Français
Package: Xephem
In Debian: yes
Web: http://www.clearskyinstitute.com/xephem/xephem.html
Description
Xephem is a very powerful astronomical software, which can draw sky maps, show planet appearences, download sky views on the internet and even pilot a telescope. Even if the source code is available, this software is not free.
Presentation in French: http://www.tice.ac-versailles.fr/logicielslibres/spip.php?article88