The Kepler-171 system contains 3 exoplanets. It is located 2817.51 light years away from the solar system.
| Mass | 0.91 solar masses |
| Radius | 0.84 solar radiae |
| Temperature | 5642 kelvin |
| Stellar Metallicity | 0.11 decimal exponent |
| Age | 3.47 billion years |
At more than 10 Earth masses, Kepler-171 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 | 6.080 Earth masses |
| Density | 2.610 grams per cubic centimeter |
| Radius | 2.340 Earth radiae |
| Semi-major Axis | 0.05 AU |
| Eccentricity | 0 |
| Orbital Period | 4.167 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-171 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 | 7.080 Earth masses |
| Density | 2.320 grams per cubic centimeter |
| Radius | 2.560 Earth radiae |
| Semi-major Axis | 0.098 AU |
| Eccentricity | 0 |
| Orbital Period | 11.463 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 3.44, and a semi-major axis of 0.223 astronomical units, Kepler-171 d could, potentially, be an ocean world - a planet with no dry land.
| Mass | 4.230 Earth masses |
| Density | 3.440 grams per cubic centimeter |
| Radius | 1.890 Earth radiae |
| Semi-major Axis | 0.223 AU |
| Eccentricity | 0 |
| Orbital Period | 39.596 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 |