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Binary system (astronomy)


 

A binary system is an astronomy term referring to two objects in space, usually stars, which are so close that their gravitational forces attract one another into a mutual orbit. Astronomers find that more than 50% of stars are binary stars.

Related Topics:
Astronomy - Space - Star - Gravitational - Force - Orbit

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See Binary star for the common case of a binary system composed of two stars.

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