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Exoplanet

K2-217 b

1,245.52 light-years

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Discovery
Transit · 2018
Radius
3.5785 (+0.6982 / −0.4851) Earth radii
Mass
12.5 Earth masses
Orbital period
14.0745 (+9.94 × 10⁻⁴ / −9.38 × 10⁻⁴) days
Semi-major axis
Unknown
Equilibrium temperature
Unknown
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