Stars · White supergiant

Deneb

2,600 light-years · Light crosses it in 16 minutes

Across

282.5 million km

Vs Earth

203× Sun

Mass

19 Suns

Open Deneb in Cosmic Scale

About

Deneb marks the tail of Cygnus the Swan and one corner of the Summer Triangle. It is far more distant than most bright stars, which means it must be extraordinarily luminous to look as bright as it does.

One of the most luminous stars visible to the naked eye.

At a glance

Distance	About 2,600 light-years
Surface	8,525 K
Brightness	Nearly 200,000 Suns
Type	White supergiant

Did you know

1. Its distance is uncertain, and with it the estimate of how luminous it really is.
2. It is shedding mass in a strong stellar wind, losing in a century what the Sun loses in a hundred thousand years.
3. It will end its life as a supernova within a few million years.