linux and Astronomy!

Try for a search in google with linux+astronomy as search text.You will be surprised with the search results!
The opensource community has developed and hosted so many wonderful programs for Astronomy related software.One of the software I tried recently is OpenUniverse(.org).It offers 3D simulation of solar system.You can fly near to a planet and observe it and do so many other things.There are tons of Astronomy software for linux ,but Linux for Astronomy CDROM project has compiled these programs in CD format.Worth giving a try!