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.
The culprit is an unseen companion star that is pulling in material from its larger neighbor.
From Science Daily ● May 1, 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
They have identified a companion star that repeatedly passes through the same region where this unusually hot dust remains.
From Science Daily ● Dec. 17, 2025
Nay, the movement of revolution has been decided before the companion star was discovered.
From Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work by Warren, Henry White
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.
