giant · G7III
Kornephoros
Kornephoros is a yellow giant (spectral type G7III) about 139 light-years away. With an apparent magnitude of 2.77 it is easy to see even from a city.
The brightest star in Hercules; the name means "club bearer".
Its light output is roughly 120 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 May.
Key facts
- Distance
- ≈ 139 light-years
- Spectral type
- G7III (giant)
- Colour
- Yellow
- Apparent magnitude
- 2.77 mag
- Luminosity
- ≈ 120 × Sun
- Position
- Right ascension 16h 30m, declination 21.5°
More well-known stars
Data: Hipparcos / HYG catalogue (CC BY-SA 4.0). Luminosity and visibility are calculated estimates.