Exoplanet
Kepler-391 c
2,835.07 light-years
- Discovery
- Transit · 2014
- Radius
- 2.88 (+0.33 / −0.33) Earth radii
- Mass
- < 450 Earth masses
- Orbital period
- 20.501 (+0.032 / −0.01) days
- Semi-major axis
- 0.164 (+0.026 / −0.022) AU
- Equilibrium temperature
- 662 (+89 / −97) 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