antares


noun Astronomy.

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

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

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.

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