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'''Kepler-68b''' is an [[exoplanet]] orbiting the Sun-like star [[Kepler-68]] in the [[Cygnus (constellation)|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<sup>3</sup>. It has an orbital period of 5.398763 days at a distance of about 0.0617 [[astronomical unit|AU]] 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> [[Doppler spectroscopy|Doppler]] measurements were made to determine its mass to be 5.79 times that of Earth (0.026 [[Jupiter mass|M<sub>J</sub>]]). <ref>http://astro.berkeley.edu/~gmarcy/22kois.pdf</ref> |
'''Kepler-68b''' is an [[exoplanet]] orbiting the Sun-like star [[Kepler-68]] in the [[Cygnus (constellation)|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<sup>3</sup>. It has an orbital period of 5.398763 days at a distance of about 0.0617 [[astronomical unit|AU]] 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> [[Doppler spectroscopy|Doppler]] measurements were made to determine its mass to be 5.79 times that of Earth (0.026 [[Jupiter mass|M<sub>J</sub>]]). <ref>http://astro.berkeley.edu/~gmarcy/22kois.pdf</ref> |
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With a density of |
With a density of 2.6 g/cm<sup>3</sup> it has physical characteristics of both a [[super-Earth]] and a [[mini-Neptune]].<ref>[http://astro.berkeley.edu/~gmarcy/22kois.pdf| Masses, radii, and orbits of small Kepler planets: the transition from gaseous to rocky planets] accessdate=8 January 2014}}</ref> |
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==See also== |
==See also== |
Revision as of 16:32, 8 January 2014
Template:Planetbox begin Template:Planetbox star Template:Planetbox character Template:Planetbox orbit Template:Planetbox discovery Template:Planetbox catalog Template:Planetbox end
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/cm3. It has an orbital period of 5.398763 days at a distance of about 0.0617 AU from its star.[1] Doppler measurements were made to determine its mass to be 5.79 times that of Earth (0.026 MJ). [2]
With a density of 2.6 g/cm3 it has physical characteristics of both a super-Earth and a mini-Neptune.[3]
See also
References
- ^ Gilliland, Ronald L. "Kepler-68: Three Planets, One With a Density Between That of Earth and Ice Giants". Cornell University. Retrieved 28 February 2013.
- ^ http://astro.berkeley.edu/~gmarcy/22kois.pdf
- ^ Masses, radii, and orbits of small Kepler planets: the transition from gaseous to rocky planets accessdate=8 January 2014}}