Links

http://www.nasa.gov

http://marple.as.utexas.edu/~ideas/mini-orrery/mini-orrerydoc.html Orrery and the Seasons of the Year

http://www.mreclipse.com/Special/LEprimer.html Lunar Eclipses

http://liftoff.msfc.nasa.gov/academy/space/solarsystem/solarsystemjava.html Explore the solar system, applet shows positions of planets right now.

http://www.fourmilab.ch/solar/solar.html Solar System Live is an interactive Orrery on the Web

http://space.jpl.nasa.gov/ solar system simulator

http://pds.jpl.nasa.gov/planets/ explore the planets