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From Wikipedia, the free encyclopedia
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).[4]
Discovery[1] | |
---|---|
Discovered by | Gilliland et al. |
Discovery site | Kepler Space Observatory |
Discovery date | 2013 |
Transits, and transit-timing variations | |
Designations | |
KOI-246.01[2] | |
Orbital characteristics[3][1] | |
0.06170±0.00056 AU | |
5.398763 d | |
Inclination | 87.60±0.90 º |
Semi-amplitude | 2.7+0.48 −0.46 m/s |
Star | Kepler-68 |
Physical characteristics[3] | |
2.31+0.06 −0.09 R🜨 | |
Mass | 7.65+1.37 −1.32 M🜨 |
With a density of 2.6 g/cm3 it has physical characteristics of both a super-Earth and a mini-Neptune.[4]
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