The K2-122 system contains 1 exoplanet. It is located 234.98 light years away from the solar system.
| Mass | 0.63 solar masses |
| Radius | 0.59 solar radiae |
| Temperature | 4009 kelvin |
| Stellar Metallicity | 0.32 decimal exponent |
| Age | - billion years |
At 1.657 Earth masses, K2-122 b 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 | 1.650 Earth masses |
| Density | 5.810 grams per cubic centimeter |
| Radius | 1.160 Earth radiae |
| Semi-major Axis | 0.0373 AU |
| Eccentricity | 0.21 |
| Orbital Period | 2.219 days |
| Discovery Method | Transit |
| Discovery Facility | K2 |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2017-11 |
| Reference | Dressing et al. 2017 |