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Public Universe

Exoplanet

GJ 317 b

49.57 light-years

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Discovery
Radial Velocity · 2007
Radius
13.3 Earth radii
Mass
794.5 (+222.5 / −127.1) Earth masses
Orbital period
695.69 (+0.26 / −0.25) days
Semi-major axis
1.138 (+0.013 / −0.013) AU
Equilibrium temperature
100.32 (+1.65 / −1.65) K
Mass provenance
Mass

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