Antares

[an-tair-eez, -tar-]
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noun Astronomy.

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

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British Dictionary definitions for antares

Antares

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

Word Origin for Antares

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

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

Word Origin and History for antares

Antares

bright star in Scorpio, from Greek Antares, from anti Ares "rival of Mars," in reference to its red color, which resembles that of Mars. See anti- + Ares.

Online Etymology Dictionary, © 2010 Douglas Harper