The Kepler-381 system contains 3 exoplanets. It is located 871.89 light years away from the solar system.
| Mass | 1.2 solar masses |
| Radius | 1.57 solar radiae |
| Temperature | 6152 kelvin |
| Stellar Metallicity | -0.202 decimal exponent |
| Age | 2.57 billion years |
At less than 1.5 Earth masses, Kepler-381 b is a terrestrial planet, much like the terrestrial planets we find in our solar system, namely Mercury, Venus, Earth and Mars.
| Mass | 0.937 Earth masses |
| Density | 5.310 grams per cubic centimeter |
| Radius | 0.990 Earth radiae |
| Semi-major Axis | 0.066 AU |
| Eccentricity | 0 |
| Orbital Period | 5.629 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-381 c is a terrestrial planet, much like the terrestrial planets we find in our solar system, namely Mercury, Venus, Earth and Mars.
| Mass | 1.460 Earth masses |
| Density | 5.710 grams per cubic centimeter |
| Radius | 1.120 Earth radiae |
| Semi-major Axis | 0.117 AU |
| Eccentricity | 0 |
| Orbital Period | 13.392 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-381 d is a terrestrial planet, much like the terrestrial planets we find in our solar system, namely Mercury, Venus, Earth and Mars.
| Mass | 1.230 Earth masses |
| Density | 5.570 grams per cubic centimeter |
| Radius | 1.067 Earth radiae |
| Semi-major Axis | 0.085 AU |
| Eccentricity | 0 |
| Orbital Period | 8.256 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 |