|the Dog Star, Canicula, Also called: Sothis the brightest star in the sky after the sun, lying in the constellation Canis Major. It is a binary star whose companion, Sirius B, is a very faint white dwarf. Distance: 8.6 light yearsRelated: canicular, cynic|
|Related: canicular, cynic|
|[C14: via Latin from Greek Seirios, of obscure origin]|
|Sirius (sĭr'ē-əs) Pronunciation Key
The brightest star seen in the night sky. It is in the constellation Canis Major. It is a white main-sequence star on the Hertzsprung-Russell diagram, with an apparent magnitude of -1.5. Sirius is a binary star, and its companion is a white dwarf star referred to as the Pup. Sirius is also known as the Dog Star. Scientific name: Alpha Canis.