Exoplanet
Kepler-538 b
508.66 light-years
- Discovery
- Transit · 2016
- Radius
- 2.215 (+0.04 / −0.034) Earth radii
- Mass
- 12.9 (+2.9 / −2.9) Earth masses
- Orbital period
- 81.7378 (+1.3 × 10⁻⁴ / −1.3 × 10⁻⁴) days
- Semi-major axis
- 0.3554 (+6.8 × 10⁻³ / −4.7 × 10⁻³) AU
- Equilibrium temperature
- 417 (+5 / −5) 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