Exoplanet
KOI-1257 b
2,139.59 light-years
- Discovery
- Transit · 2014
- Radius
- 10.54 (+1.35 / −1.35) Earth radii
- Mass
- 460.83 (+111.24 / −111.24) Earth masses
- Orbital period
- 86.6477 (+3.4 × 10⁻⁵ / −3.4 × 10⁻⁵) days
- Semi-major axis
- 0.382 (+6 × 10⁻³ / −6 × 10⁻³) AU
- Equilibrium temperature
- 511 (+50 / −50) 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