Just a heads up. Stellarium is a 3d application and will run your average machine fairly hard as a result (as it just renders as many frames per second as it can). This means that your laptop battery will probably go pretty quickly.
To further reinforce this, I had a cpu fan go on one of my computers and whilst I could get away with medial use (very big heatsink), if I loaded stellarium, the machine crashed, due to heat
