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Public Universe

Exoplanet

HD 208487 b

147.25 light-years

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Discovery
Radial Velocity · 2004
Radius
14.3 Earth radii
Mass
146.2011 (+3.1783 / −0) Earth masses
Orbital period
129.36 (+0.02 / −0.02) days
Semi-major axis
0.53 (+0 / −0) AU
Equilibrium temperature
437.59 (+5.29 / −5.29) 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