If you do not have a telescope at home but you want to enjoy the sky and they are, Stellarium may be a good choice to get into this delightful hobby.
Stellarium is really a good app that will be enjoyed by both of those satellites and those who do not know anything about those stars.
It's a strong database and a photo-realistic visual engine combination.
Stellarium is a full virtual planetarium with 120.000 stars, planets, constellations, ... and a completely customizable navigation system which allows you to choose the place you want to look at from the sky.
For Mac OS X 10.4 or Higher.
|GNU||0.18.2 for Mac||Stellarium Project|