DOUBLE STAR Definition & Meaning

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double star

noun

Astronomy.

two stars that appear as one if not viewed through a telescope with adequate magnification, such as two stars that are separated by a great distance but are nearly in line with each other and an observer optical double star, or those that are relatively close together and comprise a single physical system physical double star.

double star

noun

two stars, appearing close together when viewed through a telescope; either physically associated (binary star) or not associated (optical double star) See also binary star optical double star

double star

See binary star

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�y��vlog History and Origins

Origin of double star¹

First recorded in 1775–85

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Example Sentences

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The park service is enticing potential visitors by telling them that they could see “an assortment of planets, double stars, star clusters, nebulae and distant galaxies by night.”

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And a smaller quibble: movie also purports in an early scene to show the double star Mizar and Alcor, but the photograph on screen is not of them.

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“You can look for satellites and constellations and double stars,” Oluseyi says.

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Stellar-size black holes call attention to themselves as they cannibalize their companions in double star systems.

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The second star on the “handle” of the Plough is a naked-eye double star.

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