- Stars with a name
- Seginus
Seginus
γ Boötis
Seginus is a white giant, in the constellation Boötes. The light you see from it tonight left it around 1939.
Where to find it
From mid-northern latitudes, such as New York, Rome or Tokyo, it is best seen in the evening sky in March, April, May, June, July, and August.
Visible to the naked eye away from the brightest lights. Apparent magnitude 3.04.
What it’s like
It gives off 37 times as much light as the Sun.
Its surface is at about 8,200 degrees.
It is 86.8 light years away: 821 trillion kilometres.
It is the star of people born around 1939: the light that left it then is reaching Earth now.