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Exoplanet

Kepler-431 c

1,586.9 light-years

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Discovery
Transit · 2015
Radius
0.668 Earth radii
Mass
0.229 Earth masses
Orbital period
8.703 days
Semi-major axis
0.0847 AU
Equilibrium temperature
951 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