- 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 temperature is about 11,900 degrees Celsius.
It is 227.8 light years away: 2155 trillion kilometres.