|Extrasolar planet||List of extrasolar planets|
|Star||Kepler-68 (KOI 246)|
|Right ascension||(α)||19h 24m 07.76s|
|Declination||(δ)||+49° 02′ 25″|
|Age||6.3 ± 1.7 Gyr|
|Density||(ρ)||2.60±0.74 g cm-3|
|Semimajor axis||(a)||0.06170 AU|
|Orbital period||(P)||5.398763 d|
|Discovery date||12 February 2013|
|Discovery method||Transit (Kepler Mission)|
|Other detection methods||Radial velocity|
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. Doppler measurements were made to determine its mass to be 5.79 times that of Earth (0.026 MJ).
- Gilliland, Ronald L. "Kepler-68: Three Planets, One With a Density Between That of Earth and Ice Giants". Cornell University. Retrieved 28 February 2013.
- Masses, radii, and orbits of small Kepler planets: the transition from gaseous to rocky planets accessdate=8 January 2014
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