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Public Universe

Exoplanet

HD 87646 b

240 light-years

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Discovery
Radial Velocity · 2016
Radius
12.4 Earth radii
Mass
3,941.092 (+222.481 / −222.481) Earth masses
Orbital period
13.481 (+1 × 10⁻³ / −1 × 10⁻³) days
Semi-major axis
0.117 (+3 × 10⁻³ / −3 × 10⁻³) AU
Equilibrium temperature
1,012.7 (+74.37 / −74.37) 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