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Public Universe

Exoplanet

HD 43197 b

203.56 light-years

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Discovery
Radial Velocity · 2010
Radius
14.2 Earth radii
Mass
175.7591 (+16.5271 / −15.2558) Earth masses
Orbital period
308.9207 (+2.3409 / −2.8357) days
Semi-major axis
0.882 (+0.035 / −0.039) AU
Equilibrium temperature
282.81 (+6.54 / −6.54) 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