Exoplanet
Kepler-221 c
1,256.46 light-years
- Discovery
- Transit · 2014
- Radius
- 2.93 (+0.27 / −0.27) Earth radii
- Mass
- 9.3 (+2.4 / −1.7) Earth masses
- Orbital period
- 5.6906 (+4 × 10⁻⁶ / −4 × 10⁻⁶) days
- Semi-major axis
- 0.059 AU
- Equilibrium temperature
- 860 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