main-sequence star · A0V
Alphecca
Alphecca is a blue-white main-sequence star (spectral type A0V) about 75 light-years away. With an apparent magnitude of 2.22 it is easy to see even from a city.
The brightest star in Corona Borealis (the Northern Crown).
Its light output is roughly 60 times that of the Sun (a rough estimate in visible light, calculated from brightness and distance).
From Germany (52° N) it rises and sets; it is best seen in the evening in May.
Key facts
- Distance
- ≈ 75 light-years
- Spectral type
- A0V (main-sequence star)
- Colour
- Blue-white
- Apparent magnitude
- 2.22 mag
- Luminosity
- ≈ 60 × Sun
- Position
- Right ascension 15h 35m, declination 26.7°
More well-known stars
Data: Hipparcos / HYG catalogue (CC BY-SA 4.0). Luminosity and visibility are calculated estimates.