The Kepler-438 system contains 1 exoplanet. It is located 639.08 light years away from the solar system.
| Mass | 0.54 solar masses |
| Radius | 0.52 solar radiae |
| Temperature | 3748 kelvin |
| Stellar Metallicity | 0.16 decimal exponent |
| Age | 4.4 billion years |
At less than 1.5 Earth masses, Kepler-438 b 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 | 0.166 AU |
| Eccentricity | 0.03 |
| Orbital Period | 35.233 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2015-02 |
| Reference | Torres et al. 2015 |