double star

Example Sentences

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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.

From Salon • May 6, 2023

A star like Mizar A, which appears as a single star when photographed or observed visually through the telescope, but which spectroscopy shows really to be a double star, is called a spectroscopic binary.

From Textbooks • Oct. 13, 2016

Throughout April, Mars, Saturn and the red variable double star Antares form a triangular, cosmic congregation.

From Washington Post • Apr. 2, 2016

Alpha Centauri, only four light-years from here, is actually a double star, Alpha Centauri A and Alpha Centauri B. There is a third star, Proxima Centauri, sometimes called Alpha Centauri C, in the system.

From New York Times • Aug. 4, 2014

We may also employ the five-inch for an inspection of the double star ι, whose chief component of the fifth magnitude is beautifully tinged with green.

From Pleasures of the telescope An Illustrated Guide for Amateur Astronomers and a Popular Description of the Chief Wonders of the Heavens for General Readers by Serviss, Garrett Putman