- the Dog Star, the brightest-appearing star in the heavens, located in the constellation Canis Major.
- Also Sir·i·us .Classical Mythology.
- the dog of Orion.
- Icarius' faithful dog, who was changed into a star.
- 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 years
