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Exoplanet

Kepler-657 b

5,518.17 light-years

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Discovery
Transit · 2016
Radius
3.52 (+0.69 / −0.32) Earth radii
Mass
12.2 Earth masses
Orbital period
24.5435 (+6.435 × 10⁻⁵ / −6.435 × 10⁻⁵) days
Semi-major axis
0.1734 (+1.64 × 10⁻³ / −1.64 × 10⁻³) AU
Equilibrium temperature
616 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