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Reply to "The name of our moon?"

quote:
Originally posted by ricardomath:
quote:
Originally posted by umbrarchist:
I have occasionally read of the Earth-Moon referred to as a double planet but the barycenter is within the Earth.

http://en.wikipedia.org/wiki/Center_of_mass

I wonder what the effect would be if the barycenter was just slightly above the surface.

umbra


Looks like I misremembered the position of the center of mass.
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