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Astronomy HyperText Book: Planetary Motion
Kepler's Laws of Planetary Motion Uniform Circular Motion Kepler's First Law: All planets move about the sun in an elliptical orbit with the sun at one foci. In an elliptical orbit the distance between the planet and the sun is continuously varying: Keplers Second Law: Equal Areas in Equal Times Keplers Third Law: The Harmonic law which is mathematically stated as follows: In the above P is the ...
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