subgiant · B0.5IV
Acrux
Acrux is a blue subgiant (spectral type B0.5IV) about 320 light-years away. With an apparent magnitude of 0.77 it is a very bright, conspicuous star.
The brightest star in the Southern Cross.
Its light output is roughly 4,000 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
- ≈ 320 light-years
- Spectral type
- B0.5IV (subgiant)
- Colour
- Blue
- Apparent magnitude
- 0.77 mag
- Luminosity
- ≈ 4,000 × Sun
- Position
- Right ascension 12h 27m, declination -63.1°
More well-known stars
Data: Hipparcos / HYG catalogue (CC BY-SA 4.0). Luminosity and visibility are calculated estimates.