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Public Universe

Exoplanet

HD 4203 c

265.42 light-years

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Discovery
Radial Velocity · 2014
Radius
13.3 Earth radii
Mass
689.66 (+165.26 / −165.26) Earth masses
Orbital period
6,700 (+4,500 / −4,500) days
Semi-major axis
6.95 (+1.93 / −0.56) AU
Equilibrium temperature
124.96 (+11.83 / −11.83) 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