Stellarium renders 3D photo-realistic skies in real time with OpenGL. It displays stars, constellations, planets, nebulas and others things like ground, landscape, atmosphere, etc.
Rated 50/50 by DaveChalles at Mar 29, 2011
Easy to use The only thing I can think of is that while using it you have no access to any other program. Very good program
Rated 50/50 by Fred55110 at May 2, 2011
Thru the years I.ve used this program on Windows 98, ME, XP, Vista and Windows 7. I, have a copy on my old Power Mac with OS 10.4 and its flawless on all of those OS's and even on Linux systems, it shows you all you can possibly see in the sky. It has never offered to wash my dishes or do my laundry, I, thought I'd put that in because I, don't know how anyone could not give this program 5 stars when it does everything it says it will and do it for free!!!! It out performs every other program I, have for Astronomy no matter how much I've paid for those (and they get really pricey) it updates the stars catlog when needed, what more could you possibly want!