- Stars with a name
- Aludra
Aludra
η Canis Majoris
Aludra is a very hot blue supergiant, in the constellation Canis Major. The light you see from it tonight left it around 37.
Where to find it
Bright enough to see even from a city. Apparent magnitude 2.45.
What it’s like
It gives off 33,916 times as much light as the Sun.
Its surface is at about 11,300 degrees.
It is 1,988.8 light years away: 18,815 trillion kilometres.