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Exoplanet

HD 188015 b

165.27 light-years

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Discovery
Radial Velocity · 2004
Radius
13.6 Earth radii
Mass
476.72 (+41.32 / −41.32) Earth masses
Orbital period
461.2 (+1.7 / −1.7) days
Semi-major axis
1.203 (+0.07 / −0.07) AU
Equilibrium temperature
267.98 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