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Public Universe

Exoplanet

HIP 111909 c

287.27 light-years

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Discovery
Radial Velocity · 2025
Radius
13.9 Earth radii
Mass
257.441 (+25.4263 / −25.4263) Earth masses
Orbital period
893.63 (+14.89 / −16.03) days
Semi-major axis
1.97 (+0.08 / −0.03) AU
Equilibrium temperature
357.64 (+6.5 / −6.5) K
Mass provenance
Msini

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