Sirius

Sirius is a binary star system. It's main member, Sirius A s the brightest star in the night sky. Its name is derived from the Greek word Σείριος Seirios "glowing" or "scorching". The star is designated Latinized to Alpha Canis Majoris, and abbreviated Alpha CMa or α CMa. With a visual apparent magnitude of −1.46, Sirius is almost twice as bright as Canopus, the next brightest star. Sirius A is known informally as the "Dog Star" and the companion informally as a Pup star.

Properties
Despite Sirius A's apparent brightness from Earth, when viewed from somewhere closer to Sirius system, it significantly lower luminosity than other bright stars such as Canopus or Rigel. Sirius is located to the south of Venus, so it's to the right of Venus as you stand facing east. Have you noticed a very bright, madly twinkling star in this part of the early morning sky?