The Kepler-254 system contains 3 exoplanets. It is located 4531.87 light years away from the solar system.
| Mass | 0.93 solar masses |
| Radius | 0.91 solar radiae |
| Temperature | 5957 kelvin |
| Stellar Metallicity | 0.16 decimal exponent |
| Age | 0.3 billion years |
At more than 10 Earth masses, Kepler-254 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 | 14.300 Earth masses |
| Density | 1.360 grams per cubic centimeter |
| Radius | 3.870 Earth radiae |
| Semi-major Axis | 0.064 AU |
| Eccentricity | 0 |
| Orbital Period | 5.827 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 |
With a mass below 5 Earth masses, a density of 1.77, and a semi-major axis of 0.105 astronomical units, Kepler-254 c could, potentially, be an ocean world - a planet with no dry land.
| Mass | 3.200 Earth masses |
| Density | 1.770 grams per cubic centimeter |
| Radius | 2.150 Earth radiae |
| Semi-major Axis | 0.105 AU |
| Eccentricity | 0 |
| Orbital Period | 12.412 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-254 d 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 | 6.800 Earth masses |
| Density | 2.390 grams per cubic centimeter |
| Radius | 2.500 Earth radiae |
| Semi-major Axis | 0.139 AU |
| Eccentricity | 0 |
| Orbital Period | 18.746 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 |