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Exoplanet

Kepler-178 c

2,335.36 light-years

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Discovery
Transit · 2014
Radius
2.88 (+1.23 / −1.23) Earth radii
Mass
8.65 Earth masses
Orbital period
20.5528 (+6.6 × 10⁻⁵ / −6.6 × 10⁻⁵) days
Semi-major axis
0.142 AU
Equilibrium temperature
656 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