Star · K0 III
ο CrB
ο CrB is a giant star of spectral type K0 III in the constellation Corona Borealis, 273.8 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | omi CrB · HIP 75049 |
|---|---|
| Constellation | Corona Borealis |
| Distance | 273.8 light-years (84.0 pc) |
| Apparent magnitude | magnitude 5.51 |
| Absolute magnitude | magnitude 0.89 |
| Spectral type | K0 III |
| Surface temperature | 4,770 K |
| Luminosity | 66.4 L☉ |
| Radius | 11.9 R☉ |
| Mass | 1.3 M☉ |
| Age | 7.8 billion years |
| Metallicity [Fe/H] | -0.27 |
| Right ascension (J2000) | 15h 20m 08.6s |
| Declination (J2000) | +29° 36′ 58″ |
| Space velocity (relative to the Sun) | 73.5 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.51). Visible from the whole Northern Hemisphere and south to latitude 60° S. North of latitude 60° 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 1752. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.9 million years.
The Sun seen from there
From a planet around ο CrB, the Sun would look like a star of magnitude 9.45, in the direction where our sky has the constellation Fornax. It would be invisible to the naked eye.
Planets
- omi CrB b 187-day orbit · 13.7 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 74868 6.24 light-years
- HIP 74899 7.72 light-years
- HIP 75591 13.1 light-years
- 50 Boo 16.3 light-years
- SDSS J151542.29+325543.2 17.4 light-years
- HIP 75000 17.5 light-years
- HIP 76536 18.5 light-years
- HIP 74933 19.9 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.