Webography

  • Cal Tech
    Wonderful animations of the motion of each planet, with historical background on Kepler's music theory. Requires QuickTime player. But beware: the aphelion and perihelion tangent circles are not drawn to scale.

  • Craig Sean McConnell
    Brilliant animated graphics of the models of Eudoxus, Ptolemy, and Copernicus.

  • Asklasen, National University of Singapore
    Amazing graphics and animations.

  • Rev'd 04 may 2002 by ralph abraham