I just discovered Stellarium, and it seems to work nicely.
There is also:
Celestia
Starry Night
TheSky
Redshift
Dance of the Planets
Universe Sandbox
You can see the links to those here in the "See also" section --
http://en.wikipedia.org/wiki/Stellarium_(computer_program)
I was surprised to find that TheSkySix is distributed on a 200GB hard disk with complete catalogs!! It's that BIG!! Even my baddest and raunchiest Orbiter install is nowhere near that!! Good God!!
There is also:
Celestia
Starry Night
TheSky
Redshift
Dance of the Planets
Universe Sandbox
You can see the links to those here in the "See also" section --
http://en.wikipedia.org/wiki/Stellarium_(computer_program)
I was surprised to find that TheSkySix is distributed on a 200GB hard disk with complete catalogs!! It's that BIG!! Even my baddest and raunchiest Orbiter install is nowhere near that!! Good God!!