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Public Universe

Exoplanet

HD 29021 b

101.09 light-years

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Discovery
Radial Velocity · 2017
Radius
12.9 Earth radii
Mass
1,420.693 (+212.945 / −206.5885) Earth masses
Orbital period
1,365 (+7 / −7) days
Semi-major axis
2.294 (+0.019 / −0.019) AU
Equilibrium temperature
163.2 (+8.77 / −8.77) 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