Kepler's Distance Law

Submitted by Peter L. Griffiths (United Kingdom), Aug 13, 2015 at 11:51

Kepler's distance law v^2 =1/r is crucial for an understanding of astronomical orbits particularly of Halley's Comet. We know the Comet's velocity and distance from the Sun at perihelion, but very little else largely because of the innumaracy of professional astronomers, who have made no advances in the subject since Isaac Newton's Principia page 540.

Note: Opinions expressed in comments are those of the authors alone and not necessarily those of Daniel Pipes. Original writing only, please. Comments are screened and in some cases edited before posting. Reasoned disagreement is welcome but not comments that are scurrilous, off-topic, commercial, disparaging religions, or otherwise inappropriate. For complete regulations, see the "Guidelines for Reader Comments".