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Public Universe

Exoplanet

HD 20003 b

136.44 light-years

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Discovery
Radial Velocity · 2019
Radius
3.43 Earth radii
Mass
11.66 (+1.04 / −1.06) Earth masses
Orbital period
11.8482 (+1.6 × 10⁻³ / −1.7 × 10⁻³) days
Semi-major axis
0.0974 (+3.4 × 10⁻³ / −3.9 × 10⁻³) AU
Equilibrium temperature
814.93 (+21.14 / −21.14) 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