- Stars with a name
- Alphecca
Alphecca
α Coronae Borealis
Alphecca is a white star, in the constellation Corona Borealis. The light you see from it tonight left it around 1951.
Where to find it
From mid-northern latitudes, such as New York, Rome or Tokyo, it is best seen in the evening sky in April, May, June, July, and August.
Bright enough to see even from a city. Apparent magnitude 2.22.
What it’s like
It gives off 60 times as much light as the Sun.
Its surface is at about 9,700 degrees.
It is 75.1 light years away: 710 trillion kilometres.
It is the star of people born around 1951: the light that left it then is reaching Earth now.