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Exoplanet

Kepler-186 c

579.23 light-years

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Discovery
Transit · 2014
Radius
1.25 (+0.14 / −0.14) Earth radii
Mass
2.1 Earth masses
Orbital period
7.2673 (+1.2 × 10⁻⁵ / −1.1 × 10⁻⁵) days
Semi-major axis
0.0451 (+7 × 10⁻³ / −7 × 10⁻³) AU
Equilibrium temperature
464 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