Exoplanet CatalogExoplanet Kepler-138 e
Radius0.80 R⊕Earth = 1
Mass0.4 M⊕Earth = 1
Orbital period38.23 d
Equilibrium temp.292 K≈ 19 °C
Distance218.1 ly
Discovered2022Transit Timing Variations
Size compared (radius, Earth = 1)
0.80
1.00
3.88
11.21
Where it sits among all planets (percentile)
1%
1%
75%
10%
20%
Share of planets with a smaller value (of 6,445 planets, where known).
Planets of Kepler-138 (4)
| Planet | Period (d) | Radius (R⊕) | Mass (M⊕) | Eq. temp K | Year |
|---|---|---|---|---|---|
| Kepler-138 b | 10.31 | 0.64 | 0.1 | 452 | 2014 |
| Kepler-138 c | 13.78 | 1.51 | 2.3 | 410 | 2014 |
| Kepler-138 d | 23.09 | 1.51 | 2.1 | 345 | 2014 |
| Kepler-138 e | 38.23 | 0.80 | 0.4 | 292 | 2022 |
| Host star | Spectral type | Teff K | Radius (R☉) | Mass (M☉) |
|---|---|---|---|---|
| Kepler-138 | M1 V | 3,841 | 0.54 | 0.54 |
Values are NASA Exoplanet Archive estimates and may change. Equilibrium temperature is a theoretical value ignoring any atmosphere.