main-sequence star · B6V
Achernar
Achernar is a blue main-sequence star (spectral type B6V) about 139 light-years away. With an apparent magnitude of 0.45 it is one of the brightest stars in the whole sky.
It spins so fast that it is strongly flattened.
Its light output is roughly 1,000 times that of the Sun (a rough estimate in visible light, calculated from brightness and distance).
It is never visible from Germany, as it lies too far south.
Key facts
- Distance
- ≈ 139 light-years
- Spectral type
- B6V (main-sequence star)
- Colour
- Blue
- Apparent magnitude
- 0.45 mag
- Luminosity
- ≈ 1,000 × Sun
- Position
- Right ascension 1h 38m, declination -57.2°
More well-known stars
Data: Hipparcos / HYG catalogue (CC BY-SA 4.0). Luminosity and visibility are calculated estimates.