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Public Universe

Exoplanet

HD 64121 b

423.89 light-years

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Discovery
Radial Velocity · 2022
Radius
13.2 Earth radii
Mass
813.6407 (+60.3874 / −60.3874) Earth masses
Orbital period
623 (+3.4 / −3.4) days
Semi-major axis
1.51 (+6 × 10⁻³ / −6 × 10⁻³) AU
Equilibrium temperature
464.77 (+3.72 / −3.72) 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