The Kepler-120 system contains 2 exoplanets. It is located 1267.54 light years away from the solar system.
| Mass | 0.65 solar masses |
| Radius | 0.53 solar radiae |
| Temperature | 4096 kelvin |
| Stellar Metallicity | -0.12 decimal exponent |
| Age | 3.63 billion years |
At more than 10 Earth masses, Kepler-120 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 | 8.500 Earth masses |
| Density | 4.700 grams per cubic centimeter |
| Radius | 2.150 Earth radiae |
| Semi-major Axis | 0.055 AU |
| Eccentricity | 0 |
| Orbital Period | 6.313 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2014-03 |
| Reference | Rowe et al. 2014 |
At 2.957 Earth masses, Kepler-120 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 | 2.960 Earth masses |
| Density | 4.540 grams per cubic centimeter |
| Radius | 1.530 Earth radiae |
| Semi-major Axis | 0.088 AU |
| Eccentricity | 0 |
| Orbital Period | 12.795 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2014-03 |
| Reference | Rowe et al. 2014 |