Kappa Coronae Borealis b

Kappa Coronae Borealis b
Discovery
Discovered by	Johnson et al.
Discovery site	Lick Observatory
Discovery date	2007
Detection method	Doppler spectroscopy
Orbital characteristics
Semi-major axis	2.65±0.13 AU
Eccentricity	0.167±0.032
Orbital period (sidereal)	1285±14 d
Time of perihelion	2456830±51 JD
Argument of perihelion	194±14 º
Semi-amplitude	26.18±0.86 m/s
Star	Kappa Coronae Borealis
Physical characteristics
Mass	≥1.811±0.057 MJ

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.

References

^ ^a ^b 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. arXiv:0711.4367. Bibcode:2008ApJ...675..784J. doi:10.1086/526453.
^ ^a ^b 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. arXiv:1811.03043. Bibcode:2019AJ....157..149L. doi:10.3847/1538-3881/aaf5d0. S2CID 102486961.
^ Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.

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[Johnson2008-1] 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. arXiv:0711.4367. Bibcode:2008ApJ...675..784J. doi:10.1086/526453.

[Luhn2019-2] 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. arXiv:1811.03043. Bibcode:2019AJ....157..149L. doi:10.3847/1538-3881/aaf5d0. S2CID 102486961.

[Gaia_DR2-3] Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.

[1]

[2]

[3]

Discovery^[1]
Discovered by	Johnson et al.
Discovery site	Lick Observatory
Discovery date	2007
Detection method	Doppler spectroscopy
Orbital characteristics^[2]
Semi-major axis	2.65±0.13 AU
Eccentricity	0.167±0.032
Orbital period (sidereal)	1285±14 d
Time of perihelion	2456830±51 JD
Argument of perihelion	194±14 º
Semi-amplitude	26.18±0.86 m/s
Star	Kappa Coronae Borealis
Physical characteristics^[2]
Mass	≥1.811±0.057 M_J

See also

References