The Kepler-238 system contains 5 exoplanets. It is located 5866.73 light years away from the solar system.
| Mass | 1.06 solar masses |
| Radius | 1.43 solar radiae |
| Temperature | 5751 kelvin |
| Stellar Metallicity | 0.23 decimal exponent |
| Age | 6.76 billion years |
At 3.657 Earth masses, Kepler-238 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 | 3.640 Earth masses |
| Density | 3.860 grams per cubic centimeter |
| Radius | 1.730 Earth radiae |
| Semi-major Axis | 0.034 AU |
| Eccentricity | 0 |
| Orbital Period | 2.091 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-238 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 | 6.300 Earth masses |
| Density | 2.540 grams per cubic centimeter |
| Radius | 2.390 Earth radiae |
| Semi-major Axis | 0.069 AU |
| Eccentricity | 0 |
| Orbital Period | 6.156 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-238 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 | 9.640 Earth masses |
| Density | 1.830 grams per cubic centimeter |
| Radius | 3.070 Earth radiae |
| Semi-major Axis | 0.115 AU |
| Eccentricity | 0 |
| Orbital Period | 13.234 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 50 Earth masses, Kepler-238 e is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 169.700 Earth masses |
| Density | 5.310 grams per cubic centimeter |
| Radius | 5.600 Earth radiae |
| Semi-major Axis | 0.1658 AU |
| Eccentricity | 0 |
| Orbital Period | 23.654 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2014-02 |
| Reference | Xie 2014 |
At more than 10 Earth masses, Kepler-238 f 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 | 13.500 Earth masses |
| Density | 9.270 grams per cubic centimeter |
| Radius | 2.000 Earth radiae |
| Semi-major Axis | 0.2747 AU |
| Eccentricity | 0 |
| Orbital Period | 50.447 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2014-02 |
| Reference | Xie 2014 |