Antares

American

[an-tair-eez, -tar-] / ænˈtɛər iz, -ˈtær- /

noun

Astronomy.

a red supergiant star of the first magnitude in the constellation Scorpius.

Antares British

/ ænˈtɛəriːz /

noun

the brightest star in the constellation Scorpius. It is a variable binary star whose main component, a red supergiant, is associated with a fainter green component. Visual magnitude: 1.2 (red), 6.8 (green); spectral type: M1.5Ib (red); distance: 600 light years

"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

Etymology

Origin of Antares

from Greek Antarēs, literally: simulating Mars (in colour), from _anti- + Arēs Mars

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.

See Examples For:

Antares

Antares has started deploying the fresh capital, and plans to continue investing selectively over the next few years, said founder and Managing Partner Michael Gryseels.

From The Wall Street Journal ● Oct. 13, 2026

Antares is a bright reddish star that represents the heart of the constellation Scorpius.

From Science Daily ● Sep. 3, 2026

Along the way, it will pass close to Antares.

From Science Daily ● Sep. 3, 2026

"This is the first real moment in this new nuclear renaissance," said Jordan Bramble, CEO of Antares.

From Barron's ● Jun. 28, 2026

It has been generally supposed that the Arabian astronomer Alfraganus, in his translation of Ptolemy’s Almagest, refers to only five red stars observed by Ptolemy, namely, Arcturus, Aldebaran, Betelgeuse, Antares, and Pollux.

From Astronomical Curiosities Facts and Fallacies by J. Ellard Gore

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023