KELT-6b

{{Sky|13|03|55.65|+|30|38|24.28}}{{Infobox planet|name=KELT-6b|caption=KELT-6b (white) compared to Jupiter|discovery_ref=<ref name = Collins2014/>|discoverer=Collins et al.|discovered=2014|discovery_site=[[Kilodegree Extremely Little Telescope|KELTNorth]]|semimajor={{val|0.0804|0.0014|ul=AU}}<ref name = Bonomo2017/>|discovery_method=[[Transit (astronomy)|Transit]]|period={{val|7.8457|0.0002|ul=days}}<ref name = Stassun2017/>|eccentricity={{val|0.22|0.11}}<ref name = Stassun2017/>|inclination={{val|88.81|0.85|ul=°}}<ref name = Stassun2017/>|mean_radius={{val|1.30|0.09|ul=Jupiter radius}}<ref name = Stassun2017/>|mass={{val|0.442|0.019|ul=Jupiter mass}}<ref name = Damasso2015/>|arg_peri={{val|308|30|272|ul=°}}<ref name = Damasso2015/>|time_periastron={{val|2456269.2|1.7|2.5|ul=JD|fmt=commas}}<ref name = Collins2014/>|semi-amplitude={{val|42.8|4.3|ul=km/s}}<ref name = Stassun2017/>|density={{val|0.333|0.120|0.079|ul=g/cm3}}<ref name = Bonomo2017/>({{val|0.012|0.004|0.002|ul=lb/in3}})|single_temperature={{val|1313|59|38|ul=K|fmt=comma}}<ref name = Collins2014/>|image=[[File:KELT-6b comparision.png|frameless|KELT-6b compared to Jupiter]]|star=[[KELT-6]]}}'''KELT-6b''' is an [[exoplanet]] orbiting the [[F-type star|F-type]] [[subgiant]] [[KELT-6]] approximately 791 [[Light-year|light years]] away in the northern [[constellation]] [[Coma Berenices]]. It was discovered in 2013 using the transit method, and was announced in 2014.

== Discovery == In 2014, the planet's parameters were observed. The paper states that KELT-6 has just entered the [[subgiant]] phase, and is no longer on the [[main sequence]]. In 2015, an additional planet, [[KELT-6c|c]], was discovered using the [[Doppler spectroscopy|radial velocity]] method.<ref name="Damasso2015" />

== Properties == KELT-6b is a [[hot Saturn]] with 44.2% [[Jupiter mass|Jupiter's mass]], but has been bloated to 1.3 times [[Jupiter radius|Jupiter's radius]]. Its density is half of [[Saturn]]'s, and it has an [[Planetary equilibrium temperature|equilibrium temperature]] of 1,313 [[Kelvin|K]], but a hotter dayside temperature of 1,531 K.<ref>{{Cite web|title=KELT-6 b|url=http://www.exoplanetkyoto.org/exohtml/KELT-6_b.html|access-date=2021-08-13|website=www.exoplanetkyoto.org}}</ref> == References == {{Reflist||refs=<ref name = Collins2014>{{cite journal |last1=Collins |first1=Karen A. |last2=Eastman |first2=Jason D. |last3=Beatty |first3=Thomas G. |last4=Siverd |first4=Robert J. |last5=Gaudi |first5=B. Scott |last6=Pepper |first6=Joshua |last7=Kielkopf |first7=John F. |last8=Johnson |first8=John Asher |last9=Howard |first9=Andrew W. |last10=Fischer |first10=Debra A. |last11=Manner |first11=Mark |last12=Bieryla |first12=Allyson |last13=Latham |first13=David W. |last14=Fulton |first14=Benjamin J. |last15=Gregorio |first15=Joao |last16=Buchhave |first16=Lars A. |last17=Jensen |first17=Eric L. N. |last18=Stassun |first18=Keivan G. |last19=Penev |first19=Kaloyan |last20=Crepp |first20=Justin R. |last21=Hinkley |first21=Sasha |last22=Street |first22=Rachel A. |last23=Cargile |first23=Phillip |last24=Mack |first24=Claude E. |last25=Oberst |first25=Thomas E. |last26=Avril |first26=Ryan L. |last27=Mellon |first27=Samuel N. |last28=McLeod |first28=Kim K. |last29=Penny |first29=Matthew T. |last30=Stefanik |first30=Robert P. |last31=Berlind |first31=Perry |last32=Calkins |first32=Michael L. |last33=Mao |first33=Qingqing |last34=Richert |first34=Alexander J. W. |last35=DePoy |first35=Darren L. |last36=Esquerdo |first36=Gilbert A. |last37=Gould |first37=Andrew |last38=Marshall |first38=Jennifer L. |last39=Oelkers |first39=Ryan J. |last40=Pogge |first40=Richard W. |last41=Trueblood |first41=Mark |last42=Trueblood |first42=Patricia |title=KELT-6b: A P ~ 7.9 Day Hot Saturn Transiting a Metal-poor Star with a Long-period Companion |journal=The Astronomical Journal |date=1 February 2014 |volume=147 |issue=2 |pages=39 |doi=10.1088/0004-6256/147/2/39 |arxiv=1308.2296 |bibcode=2014AJ....147...39C |s2cid=15020416 |url=https://ui.adsabs.harvard.edu/abs/2014AJ....147...39C/abstract |issn=0004-6256}}</ref>

<ref name = Bonomo2017>{{cite journal |last1=Bonomo |first1=A. S. |last2=Desidera |first2=S. |last3=Benatti |first3=S. |last4=Borsa |first4=F. |last5=Crespi |first5=S. |last6=Damasso |first6=M. |last7=Lanza |first7=A. F. |last8=Sozzetti |first8=A. |last9=Lodato |first9=G. |last10=Marzari |first10=F. |last11=Boccato |first11=C. |last12=Claudi |first12=R. U. |last13=Cosentino |first13=R. |last14=Covino |first14=E. |last15=Gratton |first15=R. |last16=Maggio |first16=A. |last17=Micela |first17=G. |last18=Molinari |first18=E. |last19=Pagano |first19=I. |last20=Piotto |first20=G. |last21=Poretti |first21=E. |last22=Smareglia |first22=R. |last23=Affer |first23=L. |last24=Biazzo |first24=K. |last25=Bignamini |first25=A. |last26=Esposito |first26=M. |last27=Giacobbe |first27=P. |last28=Hébrard |first28=G. |last29=Malavolta |first29=L. |last30=Maldonado |first30=J. |last31=Mancini |first31=L. |last32=Martinez Fiorenzano |first32=A. |last33=Masiero |first33=S. |last34=Nascimbeni |first34=V. |last35=Pedani |first35=M. |last36=Rainer |first36=M. |last37=Scandariato |first37=G. |title=The GAPS Programme with HARPS-N at TNG . XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets |journal=Astronomy and Astrophysics |date=June 2017 |volume=602 |pages=A107 |doi=10.1051/0004-6361/201629882 |arxiv=1704.00373 |bibcode=2017A&A...602A.107B |s2cid=118923163 |url=https://ui.adsabs.harvard.edu/abs/2017A&A...602A.107B |language=en |issn=0004-6361}}</ref>

<ref name = Stassun2017>{{cite journal |last1=Stassun |first1=Keivan G. |last2=Collins |first2=Karen A. |last3=Gaudi |first3=B. Scott |title=Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes |journal=The Astronomical Journal |date=March 2017 |volume=153 |issue=3 |pages=136 |doi=10.3847/1538-3881/aa5df3 |arxiv=1609.04389 |bibcode=2017AJ....153..136S |s2cid=119219062 |language=en |issn=0004-6256 |doi-access=free }}</ref>

<ref name = Damasso2015>{{cite journal |last1=Damasso |first1=M. |last2=Esposito |first2=M. |last3=Nascimbeni |first3=V. |last4=Desidera |first4=S. |last5=Bonomo |first5=A. S. |last6=Bieryla |first6=A. |last7=Malavolta |first7=L. |last8=Biazzo |first8=K. |last9=Sozzetti |first9=A. |last10=Covino |first10=E. |last11=Latham |first11=D. W. |last12=Gandolfi |first12=D. |last13=Rainer |first13=M. |last14=Petrovich |first14=C. |last15=Collins |first15=K. A. |last16=Boccato |first16=C. |last17=Claudi |first17=R. U. |last18=Cosentino |first18=R. |last19=Gratton |first19=R. |last20=Lanza |first20=A. F. |last21=Maggio |first21=A. |last22=Micela |first22=G. |last23=Molinari |first23=E. |last24=Pagano |first24=I. |last25=Piotto |first25=G. |last26=Poretti |first26=E. |last27=Smareglia |first27=R. |last28=Di Fabrizio |first28=L. |last29=Giacobbe |first29=P. |last30=Gomez-Jimenez |first30=M. |last31=Murabito |first31=S. |last32=Molinaro |first32=M. |last33=Affer |first33=L. |last34=Barbieri |first34=M. |last35=Bedin |first35=L. R. |last36=Benatti |first36=S. |last37=Borsa |first37=F. |last38=Maldonado |first38=J. |last39=Mancini |first39=L. |last40=Scandariato |first40=G. |last41=Southworth |first41=J. |last42=Zanmar Sanchez |first42=R. |title=The GAPS programme with HARPS-N at TNG. IX. The multi-planet system KELT-6: Detection of the planet KELT-6 c and measurement of the Rossiter-McLaughlin effect for KELT-6 b |journal=Astronomy and Astrophysics |date=1 September 2015 |volume=581 |pages=L6 |doi=10.1051/0004-6361/201526995 |arxiv=1508.06520 |bibcode=2015A&A...581L...6D |s2cid=119114846 |url=https://ui.adsabs.harvard.edu/abs/2015A%26A...581L...6D/abstract |issn=0004-6361}}</ref>

}}{{Coma Berenices}}{{2014 in space}}

[[Category:Coma Berenices]] [[Category:Exoplanets discovered in 2013]] [[Category:Exoplanets discovered by KELT]]