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			{{Infobox planet
	{{Planetbox begin
	\| name=Kepler-68b		\| name = Kepler-68b
			<!-- DISCOVERY -->
			\| discovery_ref = <ref name="Gilliland2013"/>
			\| discoverer = Gilliland ''et al.''
			\| discovery_site = ]
			\| discovered = 2013
			\| discovery_method = ], and ]s
			<!-- DESIGNATIONS -->
			\| alt_names = {{odlist \| KOI=246.01 }}<ref name="Simbad"/>
			<!-- ORBITAL -->
			\| orbit_ref = <ref name="Mills2019"/><ref name="Gilliland2013"/>
		⚫	\| semimajor = {{val\|0.06170\|0.00056\|ul=AU}}
		⚫	\| eccentricity =
		⚫	\| period = {{val\|5.398763\|u=days}}
		⚫	\| inclination = {{val\|87.60\|0.90\|u=º}}
			\| semi-amplitude = {{val\|2.7\|0.48\|0.46\|ul=m/s}}
		⚫	\| star = ]
			<!-- PHYS CHARS -->
			\| physical_ref = <ref name="Mills2019"/>
			\| mean_radius = {{val\|2.31\|0.06\|0.09\|ul=Earth radius}}
			\| mass = {{val\|7.65\|1.37\|1.32\|ul=Earth mass}}
			<!-- ATMOSPHERE -->
			<!-- NOTES -->
	}}		}}
	{{Planetbox star
⚫	\| star = ] ~~(KOI 246)~~
	\| constell=
	\| RA = {{RA\|19\|24\|07.76}}
	\| DEC= {{DEC\|+49\|02\|25}}
	\| dist_pc = 135
	\| dist_ly = 440
	\| app_mag = 8.588
	\| mass = 1.079±0.051
	\| radius = 1.243±0.019
	\| temperature = 5793±74
	\| metallicity = 0.12±0.074
	\| age = 6.3 ± 1.7
	}}
	{{Planetbox character
	\| mass_earth = 5.79
	\| radius_earth = 2.31±0.07
	\| stellar_flux =
	\| density_cgs = 2.60±0.74
	\| temperature = 1280
	}}
	{{Planetbox orbit
⚫	\| period = 5.398763
⚫	\| semimajor = 0.06170
⚫	\| eccentricity =
⚫	\| inclination = 87.60±0.9
	}}
	{{Planetbox discovery
	\| discovery_date = 12 February 2013
	\| discoverers =
	\| discovery_method = ] (])
	\| detection_methods = Radial velocity
	\| discovery_status = Confirmed
	}}
	{{Planetbox catalog
	\| names = KOI 246.01
	}}
	{{Planetbox end}}

	'''Kepler-68b''' is an ] orbiting the Sun-like star ] in the ]. Discovered by planetary-transit methods by the ] in February 2013, it has a radius of 2.31 ± 0.07 that of ] and a density of 2.46–4.3 g/cm<sup>3</sup>. It has an orbital period of 5.398763 days at a distance of about 0.0617 ] from its star.<ref name=~~Gilliland>{{cite web\|last=Gilliland\|first=Ronald L.\|title=Kepler-68: Three Planets, One With a Density Between That of Earth and Ice Giants\|url=http:~~/~~/arxiv.org/abs/1302.2596\|publisher=Cornell University\|accessdate=28 February 2013}}</ref~~> ] measurements were made to determine its mass to be 5.79 times that of Earth (0.026 ]). <ref~~>http:~~/~~/astro.berkeley.edu/~gmarcy/22kois.pdf</ref~~>		'''Kepler-68b''' is an ] orbiting the Sun-like star ] in the ]. Discovered by planetary-transit methods by the ] in February 2013, it has a radius of 2.31 ± 0.07 that of ] and a density of 2.46–4.3 g/cm<sup>3</sup>. It has an orbital period of 5.398763 days at a distance of about 0.0617 ] from its star.<ref name="Gilliland2013"/> ] measurements were made to determine its mass to be 5.79 times that of Earth (0.026 ]).<ref name="Marcy2014"/>

	With a density of 2.6 g/cm<sup>3</sup> it has physical characteristics of both a ] and a ].<ref~~> accessdate~~=~~8 January 2014}}<~~/~~ref~~>		With a density of 2.6 g/cm<sup>3</sup> it has physical characteristics of both a ] and a ].<ref name="Marcy2014"/>

	==See also==		==See also==
Line 49:		Line 33:

	==References==		==References==
	{{reflist}}		{{reflist\|refs=

			<ref name="Gilliland2013">{{cite journal \| title=Kepler-68: Three Planets, One with a Density Between That of Earth and Ice Giants \| last1=Gilliland \| first1=Ronald L. \| last2=Marcy \| first2=Geoffrey W. \| last3=Rowe \| first3=Jason F. \| last4=Rogers \| first4=Leslie \| last5=Torres \| first5=Guillermo \| last6=Fressin \| first6=Francois \| last7=Lopez \| first7=Eric D. \| last8=Buchhave \| first8=Lars A. \| last9=Christensen-Dalsgaard \| first9=Jørgen \| last10=Désert \| first10=Jean-Michel \| last11=Henze \| first11=Christopher E. \| last12=Isaacson \| first12=Howard \| last13=Jenkins \| first13=Jon M. \| last14=Lissauer \| first14=Jack J. \| last15=Chaplin \| first15=William J. \| last16=Basu \| first16=Sarbani \| last17=Metcalfe \| first17=Travis S. \| last18=Elsworth \| first18=Yvonne \| last19=Handberg \| first19=Rasmus \| last20=Hekker \| first20=Saskia \| last21=Huber \| first21=Daniel \| last22=Karoff \| first22=Christoffer \| last23=Kjeldsen \| first23=Hans \| last24=Lund \| first24=Mikkel N. \| last25=Lundkvist \| first25=Mia \| last26=Miglio \| first26=Andrea \| last27=Charbonneau \| first27=David \| last28=Ford \| first28=Eric B. \| last29=Fortney \| first29=Jonathan J. \| last30=Haas \| first30=Michael R. \| display-authors=1 \| journal=The Astrophysical Journal \| volume=766 \| issue=1 \| at=40 \| year=2013 \| arxiv=1302.2596 \| bibcode=2013ApJ...766...40G \| bibcode-access=free \| doi=10.1088/0004-637X/766/1/40 \| doi-access=free }}</ref>

			<ref name="Marcy2014">{{cite journal \| title=Masses, Radii, and Orbits of Small Kepler Planets: The Transition from Gaseous to Rocky Planets \| last1=Marcy \| first1=Geoffrey W. \| last2=Isaacson \| first2=Howard \| last3=Howard \| first3=Andrew W. \| last4=Rowe \| first4=Jason F. \| last5=Jenkins \| first5=Jon M. \| last6=Bryson \| first6=Stephen T. \| last7=Latham \| first7=David W. \| last8=Howell \| first8=Steve B. \| last9=Gautier \| first9=Thomas N. \| last10=Batalha \| first10=Natalie M. \| last11=Rogers \| first11=Leslie \| last12=Ciardi \| first12=David \| last13=Fischer \| first13=Debra A. \| last14=Gilliland \| first14=Ronald L. \| last15=Kjeldsen \| first15=Hans \| last16=Christensen-Dalsgaard \| first16=Jørgen \| last17=Huber \| first17=Daniel \| last18=Chaplin \| first18=William J. \| last19=Basu \| first19=Sarbani \| last20=Buchhave \| first20=Lars A. \| last21=Quinn \| first21=Samuel N. \| last22=Borucki \| first22=William J. \| last23=Koch \| first23=David G. \| last24=Hunter \| first24=Roger \| last25=Caldwell \| first25=Douglas A. \| last26=Van Cleve \| first26=Jeffrey \| last27=Kolbl \| first27=Rea \| last28=Weiss \| first28=Lauren M. \| last29=Petigura \| first29=Erik \| last30=Seager \| first30=Sara \| display-authors=1 \| journal=The Astrophysical Journal Supplement Series \| volume=210 \| issue=2 \| at=20 \| year=2014 \| arxiv=1401.4195 \| bibcode=2014ApJS..210...20M \| bibcode-access=free \| doi=10.1088/0067-0049/210/2/20 \| doi-access=free }}</ref>

			<ref name="Mills2019">{{cite journal \| title=Long-period Giant Companions to Three Compact, Multiplanet Systems \| last1=Mills \| first1=Sean M. \| last2=Howard \| first2=Andrew W. \| last3=Weiss \| first3=Lauren M. \| last4=Steffen \| first4=Jason H. \| last5=Isaacson \| first5=Howard \| last6=Fulton \| first6=Benjamin J. \| last7=Petigura \| first7=Erik A. \| last8=Kosiarek \| first8=Molly R. \| last9=Hirsch \| first9=Lea A. \| last10=Boisvert \| first10=John H. \| display-authors=1 \| journal=The Astronomical Journal \| volume=157 \| issue=4 \| at=145 \| year=2019 \| arxiv=1903.07186 \| bibcode=2019AJ....157..145M \| doi=10.3847/1538-3881/ab0899 \| s2cid=119197547 \| doi-access=free }}</ref>

			<ref name="Simbad">{{cite simbad \| title=Kepler-68b \| access-date=2019-10-30 }}</ref>

	{{~~Exoplanets~~}}		}}{{Kepler-68}}
	{{Kepler-68}}
	{{2013 in space}}		{{2013 in space}}

	]		]
	]		]
	]		]
	]		]

Latest revision as of 00:17, 27 September 2023

Kepler-68b
Discovery
Discovered by	Gilliland et al.
Discovery site	Kepler Space Observatory
Discovery date	2013
Detection method	Transits, and transit-timing variations
Designations
Alternative names	KOI-246.01
Orbital characteristics
Semi-major axis	0.06170±0.00056 AU
Orbital period (sidereal)	5.398763 d
Inclination	87.60±0.90 º
Semi-amplitude	2.7+0.48 −0.46 m/s
Star	Kepler-68
Physical characteristics
Mean radius	2.31+0.06 −0.09 R_🜨
Mass	7.65+1.37 −1.32 M_🜨

Kepler-68b is an exoplanet orbiting the Sun-like star Kepler-68 in the constellation of Cygnus. Discovered by planetary-transit methods by the Kepler space telescope in February 2013, it has a radius of 2.31 ± 0.07 that of Earth and a density of 2.46–4.3 g/cm. It has an orbital period of 5.398763 days at a distance of about 0.0617 AU from its star. Doppler measurements were made to determine its mass to be 5.79 times that of Earth (0.026 M_J).

With a density of 2.6 g/cm it has physical characteristics of both a super-Earth and a mini-Neptune.

References

^ Gilliland, Ronald L.; et al. (2013). "Kepler-68: Three Planets, One with a Density Between That of Earth and Ice Giants". The Astrophysical Journal. 766 (1). 40. arXiv:1302.2596. Bibcode:2013ApJ...766...40G. doi:10.1088/0004-637X/766/1/40.
"Kepler-68b". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-10-30.
^ Mills, Sean M.; et al. (2019). "Long-period Giant Companions to Three Compact, Multiplanet Systems". The Astronomical Journal. 157 (4). 145. arXiv:1903.07186. Bibcode:2019AJ....157..145M. doi:10.3847/1538-3881/ab0899. S2CID 119197547.
^ Marcy, Geoffrey W.; et al. (2014). "Masses, Radii, and Orbits of Small Kepler Planets: The Transition from Gaseous to Rocky Planets". The Astrophysical Journal Supplement Series. 210 (2). 20. arXiv:1401.4195. Bibcode:2014ApJS..210...20M. doi:10.1088/0067-0049/210/2/20.

v t e Kepler-68 system
Stars	Kepler-68
Planets	Kepler-68b Kepler-68c Kepler-68d

2013 in space

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Space probe launches

Space probes	LADEE (lunar orbiter; Sep 2013) Mars Orbiter Mission (Mars orbiter; Nov 2013) MAVEN (Mars orbiter; Nov 2013) Chang'e 3 / Yutu (mission to the Moon; Dec 2013)
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