subgiant · K1IV
Errai
Errai is a orange subgiant (spectral type K1IV) about 45 light-years away. With an apparent magnitude of 3.2 it is easy to see even from a city.
It has a planet. Around the year 3000 it will be the pole star.
Its light output is roughly 8.5 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
- ≈ 45 light-years
- Spectral type
- K1IV (subgiant)
- Colour
- Orange
- Apparent magnitude
- 3.2 mag
- Luminosity
- ≈ 8.5 × Sun
- Position
- Right ascension 23h 39m, declination 77.6°
More well-known stars
Data: Hipparcos / HYG catalogue (CC BY-SA 4.0). Luminosity and visibility are calculated estimates.