Exoplanet CatalogThe Kepler-138 planetary system
Distance (light-years)218.1
Spectral typeM1 V
Temperature (K)3,841
Mass (Sun = 1)0.54
| Planet | Method | Year | Orbital period (days) | Radius (Earth = 1) | Mass (Earth = 1) | Equilibrium temperature (K) |
|---|---|---|---|---|---|---|
| Kepler-138 b | Transit | 2014 | 10.31 | 0.64 | 0.1 | 452 |
| Kepler-138 c | Transit | 2014 | 13.78 | 1.51 | 2.3 | 410 |
| Kepler-138 d | Transit | 2014 | 23.09 | 1.51 | 2.1 | 345 |
| Kepler-138 e | Transit Timing Variations | 2022 | 38.23 | 0.80 | 0.4 | 292 |
Values are the archive’s composite parameters and may combine several publications; mass may be a minimum mass (M·sin i). “–” means no value in the archive.
The star
| Spectral type | Temperature (K) | Radius (Sun = 1) | Mass (Sun = 1) |
|---|---|---|---|
| M1 V | 3,841 | 0.54 | 0.54 |
About this page
Kepler-138 is about 218.1 light-years from the Sun and has 4 confirmed planet(s).