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Public Universe

Exoplanet

47 UMa c

45 light-years

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Discovery
Radial Velocity · 2001
Radius
14.2 Earth radii
Mass
171.621 (+20.976 / −23.201) Earth masses
Orbital period
2,391 (+100 / −87) days
Semi-major axis
3.6 (+0.1 / −0.1) AU
Equilibrium temperature
164.38 (+4.94 / −4.94) 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