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abstraction > mathematical concept > geometrical object > conic section > ellipse > elliptical orbit
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elliptical orbit comparison table
Subject has period has definition
commensurate orbitan integral multiple of that of the other bodyA term applied to two bodies orbiting around a common barycenter when the period of one is an integral multiple of that of the other.
libration orbitproportional to the orbital periodAn elliptical orbit associated with a stable Lagrangian point.

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