- 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 temperature is about 9,500 degrees Celsius.
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.