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Public Universe

Exoplanet

HD 27442 b

59.59 light-years

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Discovery
Radial Velocity · 2000
Radius
13.5 Earth radii
Mass
495.8 (+44.5 / −44.5) Earth masses
Orbital period
428.1 (+1.1 / −1.1) days
Semi-major axis
1.271 (+0.073 / −0.073) AU
Equilibrium temperature
369.62 (+12.06 / −12.06) 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