Deneb

American  

[den-eb] / ˈdɛn ɛb /

noun

Astronomy.

1. a first-magnitude star in the constellation Cygnus.

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Deneb British  

/ ˈdɛnɛb /

noun

1. 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

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Deneb Scientific  

/ dĕn′ĕb′ /

1. 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.

2. See Note at Rigel

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Etymology

Origin of Deneb

First recorded in 1865–70, Deneb is from the Arabic word dhanab a tail

Example Sentences

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

Deneb is to its upper left, and Vega is higher up than both of them.

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

Watch sea otters and battle a giant wave, along with Vega and Deneb.

From Washington Post • Nov. 16, 2020

Mars has a tilt of just over 25 degrees, so it's pointed at Deneb.

From "The Martian" by Andy Weir