View source for Astronomy:Kappa Coronae Borealis b

{{Short description|Extrasolar planet in the constellation Corona Borealis}}
{{Infobox planet
| name = Kappa Coronae Borealis b
<!-- DISCOVERY -->
| discovery_ref = <ref name="Johnson2008"/>
| discoverer = Johnson ''et al.''
| discovery_site = [[Organization:Lick Observatory|Lick Observatory]]
| discovered = 2007
| discovery_method = [[Astronomy:Doppler spectroscopy|Doppler spectroscopy]]
<!-- DESIGNATIONS -->
<!-- ORBITAL -->
| orbit_ref = <ref name="Luhn2019"/>
| semimajor = {{val|2.65|0.13|ul=AU}}
| eccentricity = {{val|0.167|0.032}}
| period = {{val|1285|14|u=days}}
| time_periastron = {{val|2456830|51|ul=JD}}
| arg_peri = {{val|194|14|u=º}}
| semi-amplitude = {{val|26.18|0.86|ul=m/s}}
| star = [[Astronomy:Kappa Coronae Borealis|Kappa Coronae Borealis]]
<!-- PHYS CHARS -->
| physical_ref = <ref name="Luhn2019"/>
| mass = {{val|1.811|0.057|p=≥|ul=Jupiter mass}}
<!-- ATMOSPHERE -->
<!-- NOTES -->
}}

'''Kappa Coronae Borealis b''' is an extrasolar planet approximately 98 [[Astronomy:Light-year|light-year]]s away<ref name="Gaia DR2"/> in the [[Astronomy:Constellation|constellation]] of [[Astronomy:Corona Borealis|Corona Borealis]]. This planet was discovered by Johnson et al., who used the [[Astronomy:Radial velocity|radial velocity]] method to detect wobbling of the [[Astronomy:Star|star]] caused by a [[Astronomy:Planet|planet]] move around by its tug of [[Physics:Gravity|gravity]]. It was first discovered in September 2007 and was published in November.<ref name="Johnson2008"/>

The planet is 1.8 [[Astronomy:Jupiter mass|Jupiter mass]]es, or 570 [[Astronomy:Earth mass|Earth mass]]es, although only the [[Astronomy:Minimum mass|minimum mass]] is known since the inclination is not known. It orbits at a distance of 2.7 [[Astronomy:Astronomical unit|astronomical unit]]s, or 400 gigameters, and takes 1,208 days, or 3.307 years, to orbit around [[Astronomy:Kappa Coronae Borealis|Kappa Coronae Borealis]].

==See also==
* [[Astronomy:HD 16175 b|HD 16175 b]]
* [[Astronomy:HD 167042 b|HD 167042 b]]
* [[Astronomy:Rho Coronae Borealis b|Rho Coronae Borealis b]]

==References==
{{reflist|refs=

<ref name="Gaia DR2">{{Cite Gaia DR2|1372702716380418688}}</ref>

<ref name="Johnson2008">{{cite journal | title=Retired A Stars and Their Companions. II. Jovian Planets Orbiting κ CrB and HD 167042 | last1=Johnson | first1=John Asher | last2=Marcy | first2=Geoffrey W. | last3=Fischer | first3=Debra A. | last4=Wright | first4=Jason T. | last5=Reffert | first5=Sabine | last6=Kregenow | first6=Julia M. | last7=Williams | first7=Peter K. G. | last8=Peek | first8=Kathryn M. G. | display-authors=1 | journal=The Astrophysical Journal | volume=675 | issue=1 | pages=784–789 | year=2008 | arxiv=0711.4367 | bibcode=2008ApJ...675..784J | bibcode-access=free | doi=10.1086/526453 | doi-access=free }}</ref>

<ref name="Luhn2019">{{cite journal | title=Retired A Stars and Their Companions. VIII. 15 New Planetary Signals around Subgiants and Transit Parameters for California Planet Search Planets with Subgiant Hosts | last1=Luhn | first1=Jacob K. | last2=Bastien | first2=Fabienne A. | last3=Wright | first3=Jason T. | last4=Johnson | first4=John A. | last5=Howard | first5=Andrew W. | last6=Isaacson | first6=Howard | display-authors=1 | journal=The Astronomical Journal | volume=157 | issue=4 | at=149 | year=2019 | arxiv=1811.03043 | bibcode=2019AJ....157..149L | doi=10.3847/1538-3881/aaf5d0 | s2cid=102486961 | doi-access=free }}</ref>

}}
{{DEFAULTSORT:Kappa Coronae Borealis B}}
[[Category:Corona Borealis]]
[[Category:Giant planets]]
[[Category:Exoplanets detected by radial velocity]]

es:Kappa Coronae Borealis#Sistema planetario

{{Sourceattribution|Kappa Coronae Borealis b}}