companion star
Americannoun
Etymology
Origin of companion star
First recorded in 1775–85
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
"One natural explanation is that a nearby companion star ejected this plasma," explained Professor Bing Zhang.
From Science Daily • Jan. 28, 2026
From Earth's perspective, Betelgeuse is currently eclipsing its companion star.
From Science Daily • Jan. 10, 2026
These changes are linked to a dense wake formed by the companion star.
From Science Daily • Jan. 10, 2026
Gas from the companion star continuously flows toward the white dwarf.
From Science Daily • Jan. 8, 2026
He communicated his observations to the Royal Society, and suggested that the variation in brilliancy was due to periodic eclipses by a dark companion star, a theory now universally accepted as correct.
From Darwin and Modern Science by Seward, A. C. (Albert Charles)
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.
