binary star


Definition of binary star

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

Examples of binary star in a Sentence

Recent Examples on the Web However, there is another way to find this binary star system, in the constellation of Virgo, at this time of year. Jamie Carter, Forbes, 16 May 2021 Aldebaran is actually a binary star system comprising an orange giant and a red dwarf star, though the latter is way too faint to see. Jamie Carter, Forbes, 16 Mar. 2021 The binary star system, 808 parsecs (2,600 light years) away from Earth in the constellation Lyra, was previously classified as a possible exoplanet system. Elizabeth Gibney, Scientific American, 20 Apr. 2014 Such collisions are reasonably common in binary star systems. The Economist, 21 Nov. 2020 De Mink, who models the evolution of black-hole pairs from binary star systems, says that accounting for the interlopers will be challenging. Adrian Cho, Science | AAAS, 28 Oct. 2020 Chatzopoulos' team has proposed that Betelgeuse was once part of a binary star system. Jennifer Leman, Popular Mechanics, 21 July 2020 If the binary stars orbited closely enough, one star's carbon could transfer to the other. Sarah Lewin Frasier, Scientific American, 26 Jan. 2016 But four months of observations revealed the star system might not be an ordinary binary star system. Jennifer Leman, Popular Mechanics, 7 May 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'binary star.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of binary star

1826, in the meaning defined above

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The first known use of binary star was in 1826

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Last Updated

24 May 2021

Cite this Entry

“Binary star.” Dictionary, Merriam-Webster, Accessed 15 Jun. 2021.

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