double star

Definitions of double star
1

n a system of two stars that revolve around each other under their mutual gravitation

Synonyms:
binary, binary star
Examples:
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Aldebaran
the brightest star in Taurus
Algol
the second brightest star in Perseus; the first known eclipsing binary
Alpha Centauri
brightest star in Centaurus; second nearest star to the sun
Altair
double star 15.7 light years from Earth; the brightest star in the Aquila constellation
Antares
the brightest star in Scorpius
Epsilon Aurigae
the largest known star
Procyon
the brightest star in Canis Minor
Beta Orionis
the brightest star in Orion
Canicula
the brightest star in the sky; in Canis Major
Vega
the brightest star in the constellation Lyra
Type of:
star
(astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior

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