1. Sirius (star in the constellation Canis Major); Alpha Canis Majoris; the Dog StarAstronomy
Wikipedia definition
2. SiriusSirius is the brightest star in the night sky. With a visual apparent magnitude of −1.46, it is almost twice as bright as Canopus, the next brightest star. The name "Sirius" is derived from the Ancient Greek: Σείριος Seirios ("glowing" or "scorcher"). The star has the Bayer designation Alpha Canis Majoris (α CMa).
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