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 ?
Strand makes the suggestion that this invisible companion of 61 Cygni is a planet rather than a star.
Kristiina Ehin's voluminous bilingual (the original Estonian and English translation) collection of one hundred poems is permeated with the feeling of a need for closeness with the Other, a fellow being, and an interior dialogue with the invisible companion.
For his part, Tomb differentiates between prediction and what he calls "spiritual treatment" for curses and troublesome jinn or qareen, an invisible companion that appears in the Quran.