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Exoplanet

HD 155358 c

142.27 light-years

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Discovery
Radial Velocity · 2007
Radius
13.9 Earth radii
Mass
261 (+22 / −22) Earth masses
Orbital period
391.9 (+1 / −1) days
Semi-major axis
1.02 (+0.02 / −0.02) AU
Equilibrium temperature
330.92 (+6.91 / −6.91) 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