The Kepler-1038 system contains 2 exoplanets. It is located 1905.19 light years away from the solar system.
| Mass | 0.87 solar masses |
| Radius | 0.83 solar radiae |
| Temperature | 5335 kelvin |
| Stellar Metallicity | -0.04 decimal exponent |
| Age | 4.27 billion years |
At more than 10 Earth masses, Kepler-1038 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 | 12.200 Earth masses |
| Density | 1.520 grams per cubic centimeter |
| Radius | 3.530 Earth radiae |
| Semi-major Axis | 0.5238 AU |
| Eccentricity | 0 |
| Orbital Period | 148.460 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 |
At 2.595 Earth masses, Kepler-1038 c 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 | 2.590 Earth masses |
| Density | 5.010 grams per cubic centimeter |
| Radius | 1.416 Earth radiae |
| Semi-major Axis | 0.0692 AU |
| Eccentricity | 0 |
| Orbital Period | 7.128 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2022-02 |
| Reference | Valizadegan et al. 2022 |