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Results tagged with Search options user 4272
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Luna is not exactly presenting the same face toward Earth; it is in a slightly elliptical orbit, but has simple rotation (no significant angular acceleration) that has become locked to the average or …
answered Sep 8 '18 by Whit3rd
0
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Kepler's laws of planetary motion describe a light planet orbiting a very large mass (the Sun). Those laws do not apply to a simple two-body problem where the bodies are similar in size, because he …
answered Feb 11 '18 by Whit3rd
1
vote
The second focus is... a point in space. An orbit (by Kepler's laws) is not symmetric between the two foci, but the planet travels faster when near the sun (equal area swept out in equal times) and …
answered Sep 27 '17 by Whit3rd