binary star


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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 ?
Summary: TEHRAN (FNA)- Paul Kalas of UC Berkeley was puzzled by the tilted but stable orbit of a planet around a binary star -- an orbit like that of our solar system's proposed Planet Nine.
Ironsgate Films presents: "Binary Star" - an original interactive, On-Demand series, currently in pre-production, to be filmed in the USA.
The study revolves around binary star systems, stellar pairs that reside within these clusters, and their evolution.
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"The ground-based observations suggested two possible scenarios for the three-body system: a Saturn-mass planet orbiting a close binary star pair or a Saturn-mass and an Earth-mass planet orbiting a single star," explained David Bennett of the NASA Goddard Space Flight Center in Greenbelt, Maryland, the paper's first author.
A binary star known as PB 3877 is rocketing away at about 2 million kilometers per hour--possibly fast enough to escape the galaxy's gravitational pull--and all the usual explanations for such speedy stars fall short.
A newly discovered planet in a binary star system located 3,000 light-years from Earth is expanding astronomers' notions of where Earthlike--and even potentially habitable --planets can form, and how to find them.
Binary Star, the debut novel by New School MFA Sarah Gerard, may be the finest fictional treatment of anorexia nervosa currently in print.
ISLAMABAD -- Astronomers have discovered a new planet that resembles our own Uranus in a binary star system 25,000 lightyears away.
Until the discovery, no one realised that rocky planets could form stable orbits around one member of a binary star system.
Washington, April 22 ( ANI ): Astronomers have said what at first looked like an upside-down planet has revealed a new method for studying binary star systems.