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Public Universe

Exoplanet

HD 155918 c

89.89 light-years

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Discovery
Radial Velocity · 2022
Radius
12.8 Earth radii
Mass
1,878.0481 (+207.5419 / −243.4566) Earth masses
Orbital period
1.7202 × 10⁴ (+2,100.7907 / −1,950.0347) days
Semi-major axis
13.183 (+1.17 / −1.179) AU
Equilibrium temperature
77.38 (+4.08 / −4.08) 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