The Kepler-402 system contains 4 exoplanets. It is located 2039.58 light years away from the solar system.
| Mass | 1.15 solar masses |
| Radius | 1.26 solar radiae |
| Temperature | 6090 kelvin |
| Stellar Metallicity | -0.08 decimal exponent |
| Age | 1.4 billion years |
At 1.984 Earth masses, Kepler-402 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 | 1.980 Earth masses |
| Density | 5.990 grams per cubic centimeter |
| Radius | 1.220 Earth radiae |
| Semi-major Axis | 0.051 AU |
| Eccentricity | 0 |
| Orbital Period | 4.029 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 3.056 Earth masses, Kepler-402 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 | 3.050 Earth masses |
| Density | 4.410 grams per cubic centimeter |
| Radius | 1.560 Earth radiae |
| Semi-major Axis | 0.068 AU |
| Eccentricity | 0 |
| Orbital Period | 6.125 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 2.480 Earth masses, Kepler-402 d 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 | 2.480 Earth masses |
| Density | 5.190 grams per cubic centimeter |
| Radius | 1.380 Earth radiae |
| Semi-major Axis | 0.087 AU |
| Eccentricity | 0 |
| Orbital Period | 8.921 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 2.732 Earth masses, Kepler-402 e 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 | 2.730 Earth masses |
| Density | 4.820 grams per cubic centimeter |
| Radius | 1.460 Earth radiae |
| Semi-major Axis | 0.102 AU |
| Eccentricity | 0 |
| Orbital Period | 11.243 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 |