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| '''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=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> | ||
| With a density of |
With a density of 3.32 g/cm<sup>3</sup> it has physical characteristics of both a ] and a ].<ref name=Nasa>{{cite web|last=Nasa|title=Kepler Discoveries|url=http://kepler.nasa.gov/Mission/discoveries/|publisher=Nasa.gov|accessdate=28 February 2013}}</ref> | ||
| ==See also== | ==See also== | ||
Revision as of 15:54, 8 January 2014
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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 MJ).
With a density of 3.32 g/cm it has physical characteristics of both a super-Earth and a mini-Neptune.
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
- Nasa. "Kepler Discoveries". Nasa.gov. Retrieved 28 February 2013.
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