Concept
Version 5
Created by Boundless
Motion of the Center of Mass
![COM of the Earth and Moon](../../../../../../../../../figures.boundless-cdn.com/17154/full/orbit3.gif)
COM of the Earth and Moon
Earth and Moon orbiting a COM inside the Earth. The red cross represents the COM of the two-body system. The COM will orbit around the Sun as if it is a point particle.
Source
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