main-sequence star · B8V
Gomeisa
Gomeisa is a blue main-sequence star (spectral type B8V) about 160 light-years away. With an apparent magnitude of 2.9 it is easy to see even from a city.
The second-brightest star in Canis Minor, next to Procyon.
Its light output is roughly 140 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 January.
Key facts
- Distance
- ≈ 160 light-years
- Spectral type
- B8V (main-sequence star)
- Colour
- Blue
- Apparent magnitude
- 2.9 mag
- Luminosity
- ≈ 140 × Sun
- Position
- Right ascension 7h 27m, declination 8.3°
More well-known stars
Data: Hipparcos / HYG catalogue (CC BY-SA 4.0). Luminosity and visibility are calculated estimates.