Omicron Coronae Borealis
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Corona Borealis |
| Right ascension | 15h 20m 08.559s[1] |
| Declination | +29° 36′ 58.35″[1] |
| Apparent magnitude (V) | +5.51 |
| Characteristics | |
| Spectral type | K0 III |
| Astrometry | |
| Proper motion (μ) | RA: -117.98 ± 0.18[1] mas/yr Dec.: -42.44 ± 0.31[1] mas/yr |
| Parallax (π) | 12.08 ± 0.44[1] mas |
| Distance | 270 ± 10 ly (83 ± 3 pc) |
| Details | |
| Mass | 2.13 (1.90–2.14) M☉ |
| Radius | 10.5 (9.8–11.2) R☉ |
| Luminosity | 51.2 L☉ |
| Surface gravity (log g) | 2.34 ± 0.06 cgs |
| Temperature | 4749 ± 20 K |
| Metallicity | −0.29 ± 0.03 |
| Age | ? years |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
| Extrasolar Planets Encyclopaedia | data |
Omicron Coronae Borealis (o CrB) is a K-type clump giant with one confirmed planet., believed to be, like HD 100655 b, one of the two least massive planets known around clump giants.[2]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | >1.5 MJ | 0.83 | 187.83 ± 0.54 | 0.191 ± 0.085 | — | — |
References
- 1 2 3 4 5 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752
. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.Vizier catalog entry - ↑ Sato. Its m sin i is the least, but the true-mass depends on error and inclination.
- ↑ Sato, Bun'ei; et al. (2012). "Substellar Companions to Seven Evolved Intermediate-Mass Stars". Publications of the Astronomical Society of Japan. 64 (6). 135. arXiv:1207.3141. Bibcode:2012PASJ...64..135S. doi:10.1093/pasj/64.6.135.
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