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Public Universe

Exoplanet

GJ 328 c

66.95 light-years

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Discovery
Radial Velocity · 2023
Radius
4.91 Earth radii
Mass
21.4 (+3.4 / −3.2) Earth masses
Orbital period
241.8 (+1.3 / −1.7) days
Semi-major axis
0.657 (+0.026 / −0.028) AU
Equilibrium temperature
184.01 (+11.4 / −11.4) 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