The Kepler-342 system contains 4 exoplanets. It is located 2549.27 light years away from the solar system.
| Mass | 1.26 solar masses |
| Radius | 1.47 solar radiae |
| Temperature | 6175 kelvin |
| Stellar Metallicity | -0.001 decimal exponent |
| Age | 2.04 billion years |
At more than 10 Earth masses, Kepler-342 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 | 5.690 Earth masses |
| Density | 2.740 grams per cubic centimeter |
| Radius | 2.250 Earth radiae |
| Semi-major Axis | 0.128 AU |
| Eccentricity | 0 |
| Orbital Period | 15.170 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 3.28, and a semi-major axis of 0.185 astronomical units, Kepler-342 c could, potentially, be an ocean world - a planet with no dry land.
| Mass | 4.500 Earth masses |
| Density | 3.280 grams per cubic centimeter |
| Radius | 1.960 Earth radiae |
| Semi-major Axis | 0.185 AU |
| Eccentricity | 0 |
| Orbital Period | 26.234 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 10 Earth masses, Kepler-342 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 | 6.760 Earth masses |
| Density | 2.410 grams per cubic centimeter |
| Radius | 2.490 Earth radiae |
| Semi-major Axis | 0.242 AU |
| Eccentricity | 0 |
| Orbital Period | 39.459 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 less than 1.5 Earth masses, Kepler-342 e is a terrestrial planet, much like the terrestrial planets we find in our solar system, namely Mercury, Venus, Earth and Mars.
| Mass | 0.615 Earth masses |
| Density | 4.960 grams per cubic centimeter |
| Radius | 0.880 Earth radiae |
| Semi-major Axis | 0.0293 AU |
| Eccentricity | 0 |
| Orbital Period | 1.644 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 |