Legend:
- installed by default in Ubuntu
- installed by default in Kubuntu
- installed by default in Edubuntu
- Main (officially supported) Ubuntu repository, not installed by default
- Universe (community maintained) repository
- Multiverse (non-free) repository
Those installed by default are in Main (officially supported) Ubuntu repository. For information about the Ubuntu repositories see Repositories. Clicking on the icon next a program should take you to information about the Ubuntu package.
Astronomy
KStars
- A virtual planetarium. XEphem - A very comprehensive ephemeris/planetarium. Old interface.
Nightfall - An astronomy application for fun, education, and science.
Stellarium
- Stellarium is a free open source planetarium that shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope. Google Earth
- 3D earth viewing application includes a sky view.
More Astronomy applications - UbuntuScience/Astronomy