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Antares

[an-tair-eez, -tar-] /ænˈtɛər iz, -ˈtær-/
noun, Astronomy
1.
a red supergiant star of the first magnitude in the constellation Scorpius.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for Antares

Antares

/ænˈtɛəriːz/
noun
1.
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
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
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Word Origin and History for 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
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Encyclopedia Article for Antares

red, semiregular variable star, with apparent visual magnitude about 1.1, the brightest star in the zodiacal constellation Scorpius and one of the largest known stars, having several hundred times the diameter of the Sun and 10,000 times the Sun's luminosity. It has a fifth-magnitude blue companion. Antares lies about 600 light-years from the Earth. The name seems to come from a Greek phrase meaning "rival of Ares" (i.e., rival of the planet Mars) and was probably given because of the star's colour and brightness

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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