Learn about Sirius, the Dog Star, its color changes, its mythology and its location in the constellation Canis Major. Find out how to spot it in February and see it before it sets in the west. Sirius Star, otherwise famously known as the ‘Dog Star’, has held an irreplaceable position in our night skies and in the folklore and myths of various cultures. Riveting because of its noticeable brightness, its striking color, and the astronomical constellation it belongs to, Sirius has stirred the curiosity of astronomers as well as of those who simply gaze upon the starry sky in awe and wonder. This star doesn’t just serve to beautify our night sky but also harbors some truly ... Sirius, brightest star in the night sky, with apparent visual magnitude −1.46. It is a binary star in the constellation Canis Major. The bright component of the binary is a blue-white star 25.4 times as luminous as the Sun. Sirius - Main Sequence Star Sirius, also known as the Dog Star, is the brightest star in the night sky. It is a binary star system consisting of a main sequence star, Sirius A, and a faint white dwarf companion, Sirius B. Sirius A is about twice as massive as the Sun and 25 times more luminous.
