a first-magnitude red supergiant in the constellation Orion.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use Betelgeuse in a sentence
Betelgeuse is still with us, having returned to its former brightness earlier this year.
Wintertime means Orion has returned to the evening sky in the Northern Hemisphere, and it comforts me to see Betelgeuse glowing on Orion’s shoulder.
Estimates for Betelgeuse’s vital statistics vary, but if it sat at the center of our solar system, the star would fill much of the space between the sun and Jupiter.
Betelgeuse’s brightness varies, even under normal circumstances.
At about 15 to 20 times as massive as the sun, somewhere between 750 and 1,000 times its diameter and just about 550 light-years from Earth, Betelgeuse is typically between the sixth- and seventh-brightest star in the sky.
Overhead, Betelgeuse was making the most of its recent publicity, unobstructed by vagrant clouds.Tutors' Lane | Wilmarth Lewis
He had known Betelgeuse years ago and personally had always preferred its neighbour Rigel, which had received no publicity at all.Tutors' Lane | Wilmarth Lewis
Rigel belongs to a new generation of the universe; Betelgeuse to the universe that is passing.Astronomy with an Opera-glass | Garrett Putman Serviss
And he estimated Betelgeuse to be two hundred and sixty million miles in diameter.The Prairie Child | Arthur Stringer
The reddish daylight swelled; Betelgeuse was rising quietly and majestically.Tony and the Beetles | Philip K. Dick
British Dictionary definitions for Betelgeuse
a very remote luminous red supergiant, Alpha Orionis: the second brightest star in the constellation Orion. It is a variable star
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for Betelgeuse
A red supergiant star in the constellation Orion. It is a variable star with a brightest apparent magnitude of 0.5. Scientific name: Alpha Orionis. See Note at Rigel.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.