- Stars with a name
- Nunki
Nunki
σ Sagittarii
Nunki is a very hot blue star, in the constellation Sagittarius. The light you see from it tonight left it around 1798.
Where to find it
Bright enough to see even from a city. Apparent magnitude 2.05.
What it’s like
It gives off 643 times as much light as the Sun.
Its surface is at about 12,200 degrees.
It is 227.8 light years away: 2155 trillion kilometres.