Authored by Nick Strobel, these web pages give a brief history of the imporatant figures associated with shaping Astronomical thought into what it is today. It covers the work and discoveries of the ancient Greeks,...

This is a set of 7 illustrated web pages discussing Kepler's laws. Included are equations and properties of conic sections, the scale of the solar system, the energy equation for Keplerian motion, Newton's "Universal...