Antares, also known as Alpha Scorpii is a binary system that consists of a red supergiant and it’s hot, blue companion star located in the constellation [[Scorpius]]. Antares is easily seen in the night sky as the fifteenth brightest star in the sky, known since ancient times. | Antares, also known as Alpha Scorpii is a binary system that consists of a red supergiant and it’s hot, blue companion star located in the constellation [[Scorpius]]. Antares is easily seen in the night sky as the fifteenth brightest star in the sky, known since ancient times. |