View source for Astronomy:CoRoT-20c

{{short description|Exoplanet}}
{{Infobox planet
| name = CoRoT-20c
| symbol = 
| image = 
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| background = 
| bgcolour = 
| label_width = <!-- DISCOVERY           -->
| discoverer = [[Astronomy:High Accuracy Radial Velocity Planet Searcher|HARPS]]
| discovery_site = 
| discovered = 
| discovery_method = Radial velocity
| discovery_ref = <!-- DESIGNATIONS        -->
| exosolar planets = 
| minorplanet = no
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| adjectives = <!-- ORBITAL             -->
| orbit_ref = 
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| earliest_precovery_date = 
| apsis = astron
| aphelion = 
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| semimajor = {{convert|2.9|AU|km|abbr=on}}<ref name=EU>{{cite web
 |url=https://exoplanet.eu/catalog/corot_20_c--6782/
 |work=[[Astronomy:Extrasolar Planets Encyclopaedia|Extrasolar Planets Encyclopaedia]]
 |title=Notes on CoRoT-20 c
 |access-date=February 25, 2019}}</ref>
| mean_orbit_radius = 
| eccentricity = 0.6
| period = 1675 [[Day|d]]
| synodic_period = 
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| satellite_of = 
| satellites = 
| star = {{ill|CoRoT-20|ru}}
| allsatellites = 
| tisserand = <!-- PHYS CHARS          -->
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| mass = above 17 {{Jupiter mass|link=y}}
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| family = <!-- ATMOSPHERE          -->
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| atmosphere_composition = <!-- NOTES               -->
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}}
'''CoRoT-20c''' is a [[Astronomy:Brown dwarf|brown dwarf]]-massed substellar companion found by the [[Astronomy:High Accuracy Radial Velocity Planet Searcher|HARPS]] radial-velocity search terrestrial telescope.
== Host star ==
{{main|Astronomy:CoRoT-20}}
CoRoT-20c orbits [[Astronomy:CoRoT-20|CoRoT-20]], a G2V star in the constellation of [[Astronomy:Monoceros|Monoceros]]. It has T<sub>e</sub> = 5880K, M = 1.14[[Astronomy:Solar mass|M<sub>☉</sub>]], R = 0.92[[Astronomy:Solar radius|R<sub>☉</sub>]], and above-solar metallicity. 
== Characteristics ==
It is a young planet, with an estimated age between 0.06 and 0.14 Gyr.<ref>{{cite journal
 |title=A 4.6-year period brown-dwarf companion interacting with the hot-Jupiter CoRoT-20 b
 |doi=10.1051/0004-6361/201833180
 |arxiv=1807.01229
 |last1=Rey
 |first1=J.
 |last2=Bouchy
 |first2=F.
 |last3=Stalport
 |first3=M.
 |last4=Deleuil
 |first4=M.
 |last5=Hébrard
 |first5=G.
 |last6=Almenara
 |first6=J. M.
 |last7=Alonso
 |first7=R.
 |last8=Barros
 |first8=S. C. C.
 |last9=Bonomo
 |first9=A.
 |last10=Cazalet
 |first10=G.
 |last11=Delisle
 |first11=J. B.
 |last12=Díaz
 |first12=R. F.
 |last13=Fridlund
 |first13=M.
 |last14=Guenther
 |first14=E. W.
 |last15=Guillot
 |first15=T.
 |last16=Montagnier
 |first16=G.
 |last17=Moutou
 |first17=C.
 |last18=Lovis
 |first18=C.
 |last19=Queloz
 |first19=D.
 |last20=Santerne
 |first20=A.
 |last21=Udry
 |first21=S.
 |journal=Astronomy & Astrophysics
 |year=2018
 |volume=A115
 |pages=619
 |s2cid=126274116
 }}</ref>

==See also==
*[[Astronomy:CoRoT-20b|CoRoT-20b]]

==References==
{{Reflist}}
[[Category:Brown dwarfs]]


{{Sourceattribution|CoRoT-20c}}