The Kepler-258 system contains 2 exoplanets. It is located 1878.62 light years away from the solar system.
| Mass | 0.82 solar masses |
| Radius | 0.92 solar radiae |
| Temperature | 4942 kelvin |
| Stellar Metallicity | 0.303 decimal exponent |
| Age | 13.7 billion years |
At more than 10 Earth masses, Kepler-258 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 | 15.500 Earth masses |
| Density | 1.270 grams per cubic centimeter |
| Radius | 4.060 Earth radiae |
| Semi-major Axis | 0.103 AU |
| Eccentricity | 0 |
| Orbital Period | 13.197 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 more than 10 Earth masses, Kepler-258 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 | 12.700 Earth masses |
| Density | 1.480 grams per cubic centimeter |
| Radius | 3.610 Earth radiae |
| Semi-major Axis | 0.193 AU |
| Eccentricity | 0 |
| Orbital Period | 33.653 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 |