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Old April 19 2013, 10:48 PM   #21
Metryq
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Re: If the Moon were replaced by other planets...

Gary7 wrote: View Post
anything larger than the Earth would in turn make the Earth its moon.
If Earth and another body were roughly similar in mass (even one a little greater than the other), the barycenter might be somewhere in open space between them. The two might then orbit around each other like bolas, riding a common orbit around the Sun.
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