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Deneb

[ den-eb ]
/ ˈdɛn ɛb /
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noun Astronomy.

a first-magnitude star in the constellation Cygnus.

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Origin of Deneb

First recorded in 1865–70, Deneb is from the Arabic word dhanab a tail
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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British Dictionary definitions for Deneb

Deneb
/ (ˈdɛnɛb) /

noun

the brightest star in the constellation Cygnus and one of the brightest but remotest stars in the night sky. Visual magnitude: 1.25; spectral type: A2I

Word Origin for Deneb

C19: from Arabic dhanab a tail
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 Deneb

Deneb
[ dĕnĕb′ ]

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. See Note at Rigel.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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