Astronomy stuff of above-average miscellaneity:
Bad Astronomy!
Sun and moon rise/set times
Useful facts about
our solar system's planets
The
Weather Channel's
page.
Fun astronomy-related Java applets stol - er, borrowed from Lee Mundy:
Animated Moon Phases
Gravity Cannon
Positions of Jupiter's Moons
Stellar Evolution in the H-R Diagram
Solar System Collisions!
What if the
Moon's orbit were inclined at 90 degrees?