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Public Universe

Exoplanet

HD 220773 b

164.74 light-years

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Discovery
Radial Velocity · 2011
Radius
13.6 Earth radii
Mass
460.8 (+95 / −95) Earth masses
Orbital period
3,724.7 (+463 / −463) days
Semi-major axis
4.94 (+0.2 / −0.2) AU
Equilibrium temperature
167.02 (+4.58 / −4.58) 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