One of the 12 southern constellations devised by the Dutch navigators Pieter Dirkszoon Keyser and Frederick de Houtman at the end of the 16th century. It represents the South American bird with a huge bill.
The Hipparcos parallax for Sirius is only accurate to about ±0.04 light years, giving a distance of 8.6 light years. Sirius B is generally assumed to be at the same distance.