binary star

(redirected from Telescopic binary)
Also found in: Thesaurus, Encyclopedia.

binary star

n.
A system of two stars bound together by gravity and orbiting a common center of mass, most often appearing as a single star when visible to the unaided eye. Also called double star.

binary star

n
(Astronomy) a double star system comprising two stars orbiting around their common centre of mass. A visual binary can be seen through a telescope. A spectroscopic binary can only be observed by the spectroscopic Doppler shift as each star moves towards or away from the earth. Sometimes shortened to: binary See also optical double star, eclipsing binary

bi′nary star′


n.
a system of two stars that revolve about their common center of mass.
[1875–80]

binary star

A system of two stars that orbit a common center of mass. The pair often appears as a single star to the unaided eye.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.binary star - a system of two stars that revolve around each other under their mutual gravitation
star - (astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior
References in periodicals archive ?
Gamma ([gamma]) Virginis, or Porrima, is the best-known star in Virgo after Spica: it's a telescopic binary that all the classical observing handbooks called one of the finest doubles for small telescopes.
Only 20' west-northwest of Tau is the telescopic binary 83 Leonis, whose 6.