Kepler's Laws of Planetary Motion
The First Law
Each planet moves in an elliptical orbit, with the sun at one focus of the ellipse
The Second Law
A line from the sun to a given planet sweeps out equal areas in equal times
The Third Law
The periods of the planets are proportional to the 3/2 power of the major axis lengths of their orbits.
Equivalent Proportional Calculation has similar laws as Kepler's laws have => Product Value Space
5.1.2015*0:20 (130 - 746)
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