Kepler-20b: Difference between revisions

Kepler-20b
Discovery
Discovered by	Kepler team
Discovery date	20 December 2011
Detection method	Transit (Kepler Mission)
Orbital characteristics
Semi-major axis	0.04537 AU
Eccentricity	<0.32
Orbital period (sidereal)	3.6961219 d
Inclination	86.50+0.36; −0.31
Star	Kepler-20 (KOI-070)
Physical characteristics
Mean radius	1.868+0.066; −0.034 R🜨
Mass	9.7+1.41; −1.44 ME
Mean density	8.2+2.0; −2.7 g cm−3
Temperature	1,014 K (741 °C; 1,366 °F)

Browse history interactively

← Previous edit

Content deleted Content added

VisualWikitext

Inline

Latest revision as of 17:16, 29 October 2023

Kepler-20b is an exoplanet orbiting Kepler-20 in a system 922 light years from Earth.^[2] It is classified as a Super-Earth, as it has a radius and mass greater than that of Earth. At about 1.87 R_🜨, it would most likely be a Mini-Neptune, but its high mass of 9.7 M_E implies that it is an iron-rich rocky world. Along with the other four planets in the system, Kepler-20b was announced on 20 December 2011.

References

^ Buchhave, Lars A.; Dressing, Courtney D.; Dumusque, Xavier; Rice, Ken; Vanderburg, Andrew; Mortier, Annelies; Lopez-Morales, Mercedes; Lopez, Eric; Lundkvist, Mia S.; Kjeldsen, Hans; Affer, Laura; Bonomo, Aldo S.; Charbonneau, David; Cameron, Andrew Collier; Cosentino, Rosario; Figueira, Pedro; Fiorenzano, Aldo F. M.; Harutyunyan, Avet; Haywood, Raphaëlle D.; Johnson, John Asher; Latham, David W.; Lovis, Christophe; Malavolta, Luca; Mayor, Michel; Micela, Giusi; Molinari, Emilio; Motalebi, Fatemeh; Nascimbeni, Valerio; Pepe, Francesco; et al. (2016). "A 1.9 Earth Radius Rocky Planet and the Discovery of a Non-Transiting Planet in the Kepler-20 System". The Astronomical Journal. 152 (6): 160. arXiv:1608.06836. Bibcode:2016AJ....152..160B. doi:10.3847/0004-6256/152/6/160. S2CID 216077870.
^ "Exoplanet-catalog". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 2021-10-05.

This extrasolar-planet-related article is a stub. You can help Wikipedia by expanding it.

[1] Buchhave, Lars A.; Dressing, Courtney D.; Dumusque, Xavier; Rice, Ken; Vanderburg, Andrew; Mortier, Annelies; Lopez-Morales, Mercedes; Lopez, Eric; Lundkvist, Mia S.; Kjeldsen, Hans; Affer, Laura; Bonomo, Aldo S.; Charbonneau, David; Cameron, Andrew Collier; Cosentino, Rosario; Figueira, Pedro; Fiorenzano, Aldo F. M.; Harutyunyan, Avet; Haywood, Raphaëlle D.; Johnson, John Asher; Latham, David W.; Lovis, Christophe; Malavolta, Luca; Mayor, Michel; Micela, Giusi; Molinari, Emilio; Motalebi, Fatemeh; Nascimbeni, Valerio; Pepe, Francesco; et al. (2016). "A 1.9 Earth Radius Rocky Planet and the Discovery of a Non-Transiting Planet in the Kepler-20 System". The Astronomical Journal. 152 (6): 160. arXiv:1608.06836. Bibcode:2016AJ....152..160B. doi:10.3847/0004-6256/152/6/160. S2CID 216077870.

[2] "Exoplanet-catalog". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 2021-10-05.

[1]

[2]

@@ Line 1: / Line 1: @@
+{{Short description|Mini-Neptune orbiting Kepler-20}}
-{{Planetbox begin
+{{Infobox planet
-| name = Kepler-20b
+| name                     = Kepler-20b
+| discoverer               = Kepler team
+| discovered               = 20 December 2011
+| discovery_method         = [[Methods of detecting extrasolar planets#Transit photometry|Transit]] ([[Kepler Mission]])
+| apsis                    = astron
+| semimajor                = {{val|0.04537}} [[astronomical unit|AU]]
+| eccentricity             = <0.32
+| period                   = {{val|3.6961219}} [[day|d]]
+| inclination              = {{val|86.50|+0.36|-0.31}}
+| star                     = [[Kepler-20]] (KOI-070)
+| mean_radius              = {{val|1.868|+0.066|-0.034}} {{Earth radius|link=y}}
+| mass                     = {{val|9.7|+1.41|-1.44}} <ref>{{cite journal |arxiv=1608.06836 |doi=10.3847/0004-6256/152/6/160 |title=A 1.9 Earth Radius Rocky Planet and the Discovery of a Non-Transiting Planet in the Kepler-20 System |year=2016 |last1=Buchhave |first1=Lars A. |last2=Dressing |first2=Courtney D. |last3=Dumusque |first3=Xavier |last4=Rice |first4=Ken |last5=Vanderburg |first5=Andrew |last6=Mortier |first6=Annelies |last7=Lopez-Morales |first7=Mercedes |last8=Lopez |first8=Eric |last9=Lundkvist |first9=Mia S. |last10=Kjeldsen |first10=Hans |last11=Affer |first11=Laura |last12=Bonomo |first12=Aldo S. |last13=Charbonneau |first13=David |last14=Cameron |first14=Andrew Collier |last15=Cosentino |first15=Rosario |last16=Figueira |first16=Pedro |last17=Fiorenzano |first17=Aldo F. M. |last18=Harutyunyan |first18=Avet |last19=Haywood |first19=Raphaëlle D. |last20=Johnson |first20=John Asher |last21=Latham |first21=David W. |last22=Lovis |first22=Christophe |last23=Malavolta |first23=Luca |last24=Mayor |first24=Michel |last25=Micela |first25=Giusi |last26=Molinari |first26=Emilio |last27=Motalebi |first27=Fatemeh |last28=Nascimbeni |first28=Valerio |last29=Pepe |first29=Francesco |last30=Phillips |first30=David F. |s2cid=216077870 |journal=The Astronomical Journal |volume=152 |issue=6 |page=160 |bibcode=2016AJ....152..160B |display-authors=29 |doi-access=free }}</ref> {{Earth mass|link=y}}
+| density                  = {{val|8.2|+2.0|-2.7}} [[gram|g]] [[cubic centimetre|cm<sup>−3</sup>]]
+| single_temperature       = {{convert|1014|K|C F}}
 }}
+'''Kepler-20b''' is an [[Extrasolar planet|exoplanet]] orbiting [[Kepler-20]] in a system 922 light years from Earth.<ref>{{Cite web|title=Exoplanet-catalog|url=https://exoplanets.nasa.gov/exoplanet-catalog/1594/kepler-20-b/|access-date=2021-10-05|website=Exoplanet Exploration: Planets Beyond our Solar System}}</ref> It is classified as a [[Super-Earth]], as it has a radius and mass greater than that of [[Earth]]. At about 1.87 {{Earth radius}}, it would most likely be a [[Mini-Neptune]], but its high mass of 9.7 {{Earth mass}} implies that it is an iron-rich rocky world. Along with the other four planets in the system, Kepler-20b was announced on 20 December 2011.
-{{Planetbox star
-| star = [[Kepler-20]] (KOI-070)
+==References==
-| constell = [[Lyra]]
+{{Reflist|refs=
-| RA = {{RA|19|10|47.524}}
-| DEC = {{DEC|+42|20|19.30}}
-| dist_pc = {{val|290|30}}
-| app_mag = 12.51
-| mass = {{val|0.912|0.035}}
-| radius = {{val|0.944|+0.06|-0.095}}
-| temperature = {{val|5466|93}}
-| metallicity = {{val|0.02|0.04}}
-| age = {{val|8.8|+4.7|-2.7}}
 }}
-{{Planetbox character
-| radius_earth = {{val|1.868|+0.066|-0.034}}
-| mass_earth = {{val|8.7|+2.1|-2.2}}
-| density_cgs = {{val|8.2|+2.0|-2.7}}
-| temperature = {{val|1014}}
-}}
-{{Planetbox orbit
-| period = {{val|3.6961219}}
-| semimajor = {{val|0.04537}}
-| eccentricity = <0.32
-| inclination = {{val|86.50|+0.36|-0.31}}
-}}
-{{Planetbox discovery
-| discovery_date = 20 December 2011
-| discoverers = Kepler team
-| discovery_method = [[Methods_of_detecting_extrasolar_planets#Transit_method|Transit]] ([[Kepler Mission]])
-| detection_methods = Radial velocity
-| discovery_status = Conference announcement
-}}
-{{Planetbox end}}
-'''Kepler-20b''' is an [[Extrasolar planet|exoplanet]] orbiting [[Kepler-20]]. Its radius is about twice that of [[Earth]], with a mass around 9.7 [[Earth mass]]es. It has a higher density compared to earth. Along with the other four planets in the system, Kepler-20b was announced on 20 December 2011.
+{{Kepler-20|state=uncollapsed}}
 [[Category:Exoplanets discovered in 2011]]
-[[Category:Exoplanets discovered by Kepler (spacecraft)|20b]]
+[[Category:Kepler-20|B]]
+[[Category:Transiting exoplanets]]
+[[Category:Exoplanets discovered by the Kepler space telescope|20b]]
 [[Category:Super-Earths]]
-[[Category:Transiting exoplanets]]
 {{Extrasolar-planet-stub}}
-http://arxiv.org/pdf/1608.06836v1.pdf

v t e The Kepler-20 system
Stars	Kepler-20
Planets	Kepler-20b Kepler-20c Kepler-20d Kepler-20e Kepler-20f Kepler-20g