The K2-259 system contains 1 exoplanet. It is located 1358.30 light years away from the solar system.
| Mass | 1.14 solar masses |
| Radius | 1.13 solar radiae |
| Temperature | 6059 kelvin |
| Stellar Metallicity | 0.16 decimal exponent |
| Age | - billion years |
At more than 10 Earth masses, K2-259 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 | 5.990 Earth masses |
| Density | 2.640 grams per cubic centimeter |
| Radius | 2.320 Earth radiae |
| Semi-major Axis | 0.1271 AU |
| Eccentricity | NaN |
| Orbital Period | 15.480 days |
| Discovery Method | Transit |
| Discovery Facility | K2 |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2018-08 |
| Reference | Livingston et al. 2018 |