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Public Universe

Exoplanet

HD 222582 b

137.5 light-years

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Discovery
Radial Velocity · 1999
Radius
12.6 Earth radii
Mass
2,660.2371 (+127.132 / −127.132) Earth masses
Orbital period
572.38 (+0.61 / −0.61) days
Semi-major axis
1.34 (+0.02 / −0.02) AU
Equilibrium temperature
256.39 (+3.03 / −3.03) 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