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| abstraction > mathematical concept > geometrical object > conic section > ellipse > elliptical orbit > commensurate orbit | 
| commensurate orbit comparison table | |||
| Subject | is a kind of | has period | has definition | 
|---|---|---|---|
| elliptical orbit | harmonic motion | proportional to the orbital period | |
| commensurate orbit | elliptical orbit | an integral multiple of that of the other body | A term applied to two bodies orbiting around a common barycenter when the period of one is an integral multiple of that of the other. | 
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