The Kepler-247 system contains 3 exoplanets. It is located 2164.73 light years away from the solar system.
| Mass | 0.84 solar masses |
| Radius | 0.77 solar radiae |
| Temperature | 5100 kelvin |
| Stellar Metallicity | 0.05 decimal exponent |
| Age | 0.8 billion years |
At 3.339 Earth masses, Kepler-247 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 | 3.330 Earth masses |
| Density | 4.150 grams per cubic centimeter |
| Radius | 1.640 Earth radiae |
| Semi-major Axis | 0.042 AU |
| Eccentricity | 0 |
| Orbital Period | 3.336 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-247 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 | 15.700 Earth masses |
| Density | 1.260 grams per cubic centimeter |
| Radius | 4.090 Earth radiae |
| Semi-major Axis | 0.084 AU |
| Eccentricity | 0 |
| Orbital Period | 9.439 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-247 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 | 14.700 Earth masses |
| Density | 1.320 grams per cubic centimeter |
| Radius | 3.940 Earth radiae |
| Semi-major Axis | 0.14 AU |
| Eccentricity | 0 |
| Orbital Period | 20.478 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 |