Exoplanet
Kepler-57 c
2,100.9 light-years
- Discovery
- Transit · 2012
- Radius
- 2.196 (+0.067 / −0.065) Earth radii
- Mass
- 6.86 (+1.52 / −1.43) Earth masses
- Orbital period
- 11.6 days
- Semi-major axis
- 0.0959 (+9.5 × 10⁻⁴ / −9.5 × 10⁻⁴) AU
- Equilibrium temperature
- 671 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