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visual binary

American  

noun

Astronomy.

  1. a binary star having components that are sufficiently separated to be resolved by a telescope.

visual binary Scientific  
/ vĭzh′o̅o̅-əl /

  1. See under binary star

Example Sentences

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Alpha Centauri—the nearest star to the earth—is a visual binary, the component bodies revolving around each other in a period of about eighty-one years.

From Project Gutenberg

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.