barycenter

/ băr′ĭ-sĕn′tər /

1. The center of mass of two or more bodies, usually bodies orbiting around each other, such as the Earth and the Moon.

Example Sentences

Jupiter is the only planet for which this barycenter is outside the radius of the sun.

From New York Times

The two objects also complete one orbit around their common center of mass, or barycenter, in the same amount of time.

From Scientific American

Any two objects in orbit around each other are actually in orbit around an invisible point called the center of mass, or barycenter.

From New York Times