Exoplanet
Kepler-31 d
5,429.33 light-years
- Discovery
- Transit · 2014
- Radius
- 3.9 (+0.8 / −0.8) Earth radii
- Mass
- < 2,161.244 Earth masses
- Orbital period
- 87.6451 (+1.4 × 10⁻³ / −1.4 × 10⁻³) days
- Semi-major axis
- 0.4 AU
- Equilibrium temperature
- 484 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