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Q&A What are the parameters of a planet having multiple moons?

I'm not sure if this question belongs here or over on Physics Stack Exchange. The Earth and Moon are unique in the Solar System in that the Moon is a significant size compared to the Earth, at 1/4...

3 answers  ·  posted 9y ago by Sherwood Botsford‭  ·  last activity 9y ago by Sherwood Botsford‭

Question planets moons orbital-mechanics