Exoplanet
Kepler-138 e
218.08 light-years
- Discovery
- Transit Timing Variations · 2022
- Radius
- 0.797 Earth radii
- Mass
- 0.43 (+0.21 / −0.1) Earth masses
- Orbital period
- 38.23 (+6 × 10⁻³ / −6 × 10⁻³) days
- Semi-major axis
- 0.1803 (+1.4 × 10⁻³ / −1.4 × 10⁻³) AU
- Equilibrium temperature
- 292 (+5 / −6) K
- Mass provenance
- Mass
Measurements may come from different studies and need not form one self-consistent model. “Msini” is a minimum mass; a mass inferred from radius is an estimate. Equilibrium temperature is a model estimate, not a measured surface temperature or evidence of habitability.
NASA archive record and references ↗
Snapshot retrieved: 2026-10-11T04:15:07.688253+00:00