Deneb
Americannoun
noun
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A white supergiant star. It is the brightest star in the constellation Cygnus, with an apparent magnitude of 1.26. Deneb, along with Vega and Altair, form the Summer Triangle asterism. Scientific name: Alpha Cygnus.
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See Note at Rigel
Etymology
Origin of Deneb
First recorded in 1865–70, Deneb is from the Arabic word dhanab a tail
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 of the easiest seasonal landmarks to find is the Summer Triangle, a large pattern formed by the bright stars Vega, Altair, and Deneb.
From Science Daily ● Jun. 3, 2026
It all begins with the Summer Triangle, external, a bright three-cornered pattern of stars, called Vega, Deneb, and Altair.
From BBC ● Jun. 5, 2025
Put Deneb in the center of our solar system, and Earth would be cooked.
From Scientific American ● Jul. 14, 2023
“I’m telling you, he rehabilitates animals and brings them back to life,” Deneb said.
From Los Angeles Times ● Oct. 1, 2022
So working out longitude requires Phobos to set, and working out latitude requires it to be night so I can sight Deneb.
From "The Martian" by Andy Weir
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.
