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Public Universe

Exoplanet

HD 74156 b

187.88 light-years

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Discovery
Radial Velocity · 2003
Radius
13.5 Earth radii
Mass
532.3626 (+43.2247 / −45.4495) Earth masses
Orbital period
51.6356 (+1 × 10⁻³ / −1.13 × 10⁻³) days
Semi-major axis
0.28 (+0.011 / −0.012) AU
Equilibrium temperature
679.63 (+16.71 / −16.71) 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