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Public Universe

Exoplanet

HD 33142 b

395.87 light-years

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Discovery
Radial Velocity · 2011
Radius
13.7 Earth radii
Mass
400.4638 (+15.8914 / −15.8914) Earth masses
Orbital period
330 (+0.4 / −0.4) days
Semi-major axis
1.074 (+7 × 10⁻³ / −7 × 10⁻³) AU
Equilibrium temperature
477.5 (+3.75 / −3.75) 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