Dog star
name
name ·Rare ·Advanced level
Definitions
Proper Noun
- 1 A bluish-white star in the constellation Canis Major; Alpha (α) Canis Majoris A. A vertex of the Winter Triangle and the brightest star in the night sky. It is actually a binary star with a white dwarf companion star.
Etymology
From the fact that the star lies in the constellation of Canis Major (the "larger dog").