science_laboratory7 on Instagram: "Sirius is the brightest star in the night sky, located in the Canis Major constellation and 8.6 light-years from Earth. Known as the Dog Star, it is a binary system composed of a bright main-sequence star (Sirius A) and a faint white dwarf companion (Sirius B). You can find Sirius by following the line of Orion's Belt downwards. Sirius is a binary system. As well as the bright white star we see in the sky, Sirius A, the system also contains a much fainter white