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Public Universe

Exoplanet

HD 5891 b

924.66 light-years

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Discovery
Radial Velocity · 2011
Radius
12.6 Earth radii
Mass
2,425.0429 (+454.4969 / −454.4969) Earth masses
Orbital period
177.11 (+0.32 / −0.32) days
Semi-major axis
0.64 (+0.04 / −0.04) AU
Equilibrium temperature
918.78 (+56.89 / −56.89) 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