The Kepler-68 system contains 3 exoplanets. It is located 470.21 light years away from the solar system.
| Mass | 1.06 solar masses |
| Radius | 1.26 solar radiae |
| Temperature | 5875.23 kelvin |
| Stellar Metallicity | 0.126 decimal exponent |
| Age | 6.31 billion years |
At more than 10 Earth masses, Kepler-68 b is an ice giant, a planet that is made up mostly of volatiles like water, amonia and methane, and enveloped by a dense hydrogen and helium atmosphere, much like Uranus and Neptune.
| Mass | 7.650 Earth masses |
| Density | 2.600 grams per cubic centimeter |
| Radius | 2.354 Earth radiae |
| Semi-major Axis | 0.0617 AU |
| Eccentricity | 0 |
| Orbital Period | 5.399 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2013-03 |
| Reference | Gilliland et al. 2013 |
At 2.042 Earth masses, Kepler-68 c is a so called Super Earth. Super Earths could be terrestrial worlds like Earth, but they could also be ocean worlds or terrestrial worlds wrapped in a substantial atmosphere, in which case some refer to them as Mini Neptunes.
| Mass | 2.040 Earth masses |
| Density | 28.000 grams per cubic centimeter |
| Radius | 0.920 Earth radiae |
| Semi-major Axis | 0.09059 AU |
| Eccentricity | 0 |
| Orbital Period | 9.605 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2013-03 |
| Reference | Gilliland et al. 2013 |
At more than 50 Earth masses, Kepler-68 d is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 267.000 Earth masses |
| Density | 0.546 grams per cubic centimeter |
| Radius | 13.900 Earth radiae |
| Semi-major Axis | 1.4 AU |
| Eccentricity | 0.112 |
| Orbital Period | 634.600 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | W. M. Keck Observatory |
| Discovery Telescope | 10 m Keck I Telescope |
| Discovery Instrument | HIRES Spectrometer |
| Discovery Date | 2013-03 |
| Reference | Gilliland et al. 2013 |