binary star
noun
: a system of two stars that revolve around each other under their mutual gravitation
Examples of binary star in a Sentence
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However, at certain times a series of eclipses will line up — the outer star will eclipse the binary star, and the planet will eclipse the outer star as seen from the moon.
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Keith Cooper, Space.com, 3 June 2026
Granted, this series has moving parts beyond its binary stars.
—Steven Louis Goldstein, New York Times, 18 Apr. 2026
Situated some 3,000 light-years away in the constellation Corona Borealis is a binary star system poised for a rare thermonuclear display.
—Michael D'estries, Travel + Leisure, 15 Feb. 2026
How shrinking star pairs quietly destroy their planets The researchers focused on tight binary stars, pairs of stars that orbit each other very closely, often completing an orbit in less than seven days.
—Rupendra Brahambhatt, Interesting Engineering, 31 Jan. 2026
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Keith Cooper, Space.com, 3 June 2026
Granted, this series has moving parts beyond its binary stars.
—Steven Louis Goldstein, New York Times, 18 Apr. 2026
Situated some 3,000 light-years away in the constellation Corona Borealis is a binary star system poised for a rare thermonuclear display.
—Michael D'estries, Travel + Leisure, 15 Feb. 2026
How shrinking star pairs quietly destroy their planets The researchers focused on tight binary stars, pairs of stars that orbit each other very closely, often completing an orbit in less than seven days.
—Rupendra Brahambhatt, Interesting Engineering, 31 Jan. 2026
See All Example Sentences for binary star
Cite this Entry
“Binary star.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/binary%20star. Accessed 14 Jun. 2026.
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