subgiant · A5IV
Ruchbah
Ruchbah is a blue-white subgiant (spectral type A5IV) about 99 light-years away. With an apparent magnitude of 2.67 it is easy to see even from a city.
A star in Cassiopeia's "W"; the name means "knee".
Its light output is roughly 70 times that of the Sun (a rough estimate in visible light, calculated from brightness and distance).
From Germany (52° N) it never sets: it stays above the horizon all year.
Key facts
- Distance
- ≈ 99 light-years
- Spectral type
- A5IV (subgiant)
- Colour
- Blue-white
- Apparent magnitude
- 2.67 mag
- Luminosity
- ≈ 70 × Sun
- Position
- Right ascension 1h 26m, declination 60.2°
More well-known stars
Data: Hipparcos / HYG catalogue (CC BY-SA 4.0). Luminosity and visibility are calculated estimates.