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Sirius
Sirius is the brightest star in the night sky. It lies 8.6 light years from Earth in the constellation of Canis Major. It is 25 times brighter than our Sun and twice as massive. Sirius is also known as the Dog Star due to its location in Canis Major. It is a binary star system, composed of a white main-sequence star and a faint white dwarf companion. Sirius A is the brightest star in the night sky and has a luminosity of 23 times that of our Sun.
