Double star Meaning, Definition & Usage
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noun a system of two stars that revolve around each other under their mutual gravitation
binary star; binary.
WordNet
Definitions
(Astron.) , two stars so near to each other as to be seen separate only by means of a telescope. Such stars may be only optically near to each other, or may be physically connected so that they revolve round their common center of gravity, and in the latter case are called also binary stars.
