As you may know, Stellarium is a free GPL software which renders realistic skies in real time with OpenGL. With Stellarium, you really see what you can see with your eyes, binoculars or a small telescope. Stellarium is also used in real planetariums.
The Stellarium 0.12.3 was released with a new Bright Novae plugin and fixes of few bugs within plugins and search tool. Here’s how to install or upgrade it in Ubuntu 13.10, Ubuntu 13.04, Ubuntu 12.10, Ubuntu 12.04 and Linux Mint.
To get started, Press Ctrl+Alt+T key combination to open terminal. When it opens, run below commands to add the PPA:
sudo add-apt-repository ppa:stellarium/stellarium-releases
Then update package lists on your system:
sudo apt-get update
Finally install stellarium:
sudo apt-get install stellarium