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visual binary

noun

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


visual binary

/ vĭzho̅o̅-əl /

  1. See under binary star
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Example Sentences

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.

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