Exoplanet
Kepler-857 b
3,207.75 light-years
- Discovery
- Transit · 2016
- Radius
- 6.8 (+1.7 / −0.68) Earth radii
- Mass
- 37.2 Earth masses
- Orbital period
- 85.3513 (+9.562 × 10⁻⁵ / −9.562 × 10⁻⁵) days
- Semi-major axis
- 0.3751 AU
- Equilibrium temperature
- 390 K
- Mass provenance
- M-R relationship
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