HNSKY is a freeware planetarium program for windows.
It shows the position of 10607 deepsky objects
and all stars to magnitude 12.
With the original GSC CD's or USNO to magnitude 15 or more.
It displays all the planets, the Sun, the Moon, and the major moons of ALL the known planets.
Plus a few hundred asteroids and comets.
It will run under Windows 95/98 and Windows NT 4.0, 5.0.
(An older version 1.62 will run under Windows 3.1)