Astronomy:Kappa Coronae Borealis b
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Short description: Extrasolar planet in the constellation Corona Borealis
| Discovery[1] | |
|---|---|
| Discovered by | Johnson et al. |
| Discovery site | Lick Observatory |
| Discovery date | 2007 |
| Doppler spectroscopy | |
| Orbital characteristics[2] | |
| 2.65±0.13 astronomical unit|AU | |
| Eccentricity | 0.167±0.032 |
| Orbital period | 1285±14 d |
| |{{{apsis}}}|helion}} | 2456830±51 JD |
| 194±14 º | |
| Semi-amplitude | 26.18±0.86 m/s |
| Star | Kappa Coronae Borealis |
| Physical characteristics[2] | |
| Mass | ≥1.811±0.057 Jupiter mass |
Kappa Coronae Borealis b is an extrasolar planet approximately 98 light-years away[3] in the constellation of Corona Borealis. This planet was discovered by Johnson et al., who used the radial velocity method to detect wobbling of the star caused by a planet move around by its tug of gravity. It was first discovered in September 2007 and was published in November.[1]
The planet is 1.8 Jupiter masses, or 570 Earth masses, although only the minimum mass is known since the inclination is not known. It orbits at a distance of 2.7 astronomical units, or 400 gigameters, and takes 1,208 days, or 3.307 years, to orbit around Kappa Coronae Borealis.
See also
References
- ↑ 1.0 1.1 Johnson, John Asher et al. (2008). "Retired A Stars and Their Companions. II. Jovian Planets Orbiting κ CrB and HD 167042". The Astrophysical Journal 675 (1): 784–789. doi:10.1086/526453. Bibcode: 2008ApJ...675..784J.
- ↑ 2.0 2.1 Luhn, Jacob K. et al. (2019). "Retired A Stars and Their Companions. VIII. 15 New Planetary Signals around Subgiants and Transit Parameters for California Planet Search Planets with Subgiant Hosts". The Astronomical Journal 157 (4): 149. doi:10.3847/1538-3881/aaf5d0. Bibcode: 2019AJ....157..149L.
- ↑ Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
es:Kappa Coronae Borealis#Sistema planetario
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