出典:Wiktionary
出典:『Wiktionary』 (2025/11/13 02:26 UTC 版)
Antares
出典:Wikipedia
出典:『Wikipedia』 (2011/06/01 19:53 UTC 版)
Antares (α Scorpii, α Sco, Alpha Scorpii) is a red supergiant star in the Milky Way galaxy and the sixteenth brightest star in the nighttime sky (sometimes listed as 15th brightest, if the two brighter components of the Capella quadruple star system are counted as one star). Along with Aldebaran, Spica, and Regulus it is one of the four brightest stars near the ecliptic. Antares is a slow variable star with an average magnitude of +1.09.