The K2-146 system contains 2 exoplanets. It is located 258.64 light years away from the solar system.
| Mass | 0.33 solar masses |
| Radius | 0.33 solar radiae |
| Temperature | 3385 kelvin |
| Stellar Metallicity | -0.02 decimal exponent |
| Age | 5 billion years |
At more than 10 Earth masses, K2-146 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 | 5.770 Earth masses |
| Density | 3.690 grams per cubic centimeter |
| Radius | 2.050 Earth radiae |
| Semi-major Axis | 0.0248 AU |
| Eccentricity | 0.129 |
| Orbital Period | 2.645 days |
| Discovery Method | Transit |
| Discovery Facility | K2 |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2018-03 |
| Reference | Hirano et al. 2018 |
At more than 10 Earth masses, K2-146 c 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 | 7.490 Earth masses |
| Density | 3.920 grams per cubic centimeter |
| Radius | 2.190 Earth radiae |
| Semi-major Axis | 0.0327 AU |
| Eccentricity | 0.075 |
| Orbital Period | 4.005 days |
| Discovery Method | Transit |
| Discovery Facility | K2 |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2019-09 |
| Reference | Hamann et al. 2019 |