- Stars with a name
- Cujam
Cujam
ω Herculis
Cujam is a very hot blue star, in the constellation Hercules. The light you see from it tonight left it around 1776.
Where to find it
From mid-northern latitudes, such as New York, Rome or Tokyo, it is best seen in the evening sky in May, June, July, and August.
Visible to the naked eye only under a dark sky, away from town. Apparent magnitude 4.57.
What it’s like
It gives off 76 times as much light as the Sun.
Its surface is at about 10,100 degrees.
It is 250.1 light years away: 2366 trillion kilometres.