Star · K0 III-IV
κ CrB
κ CrB is a giant star of spectral type K0 III-IV in the constellation Corona Borealis, 97.8 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | kap CrB · HIP 77655 |
|---|---|
| Constellation | Corona Borealis |
| Distance | 97.8 light-years (30.0 pc) |
| Apparent magnitude | magnitude 4.79 |
| Absolute magnitude | magnitude 2.41 |
| Spectral type | K0 III-IV |
| Surface temperature | 4,840 K |
| Luminosity | 10.9 L☉ |
| Radius | 4.68 R☉ |
| Mass | 1.33 M☉ |
| Age | 3.4 billion years |
| Metallicity [Fe/H] | 0.09 |
| Right ascension (J2000) | 15h 51m 13.9s |
| Declination (J2000) | +35° 39′ 26″ |
| Space velocity (relative to the Sun) | 55.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.79). Visible from the whole Northern Hemisphere and south to latitude 54° S. North of latitude 54° N it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1928. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.7 million years.
The Sun seen from there
From a planet around κ CrB, the Sun would look like a star of magnitude 7.21, in the direction where our sky has the constellation Eridanus. It would be invisible to the naked eye.
Planets
- kap CrB b 1,250-day orbit · 13.4 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 76330 5.89 light-years
- Gl 588.1 7.25 light-years
- GJ 3948 8.56 light-years
- GJ 3935A 10.8 light-years
- HIP 79837 11.8 light-years
- HIP 75675 12.2 light-years
- HIP 74730 12.5 light-years
- SDSS J151240.67+340350.1 13.7 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.