The Dog Star

Sirius, often referred to as the Dog Star, is the brightest star in the night sky, located approximately 8.6 light-years away in the constellation Canis Major. Its brilliance stems from both its intrinsic luminosity and proximity to Earth. Sirius is a binary star system composed of Sirius A, a main-sequence star, and its dimmer companion, Sirius B, a white dwarf. Revered across cultures, Sirius has historically been used for navigation.