The Kepler-1251 system contains 1 exoplanet. It is located 2942.59 light years away from the solar system.
| Mass | 0.92 solar masses |
| Radius | 0.89 solar radiae |
| Temperature | 5545 kelvin |
| Stellar Metallicity | -0.04 decimal exponent |
| Age | 4.79 billion years |
At 4.039 Earth masses, Kepler-1251 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 | 4.040 Earth masses |
| Density | 3.560 grams per cubic centimeter |
| Radius | 1.840 Earth radiae |
| Semi-major Axis | 0.2478 AU |
| Eccentricity | 0 |
| Orbital Period | 45.090 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2016-05 |
| Reference | Morton et al. 2016 |