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Public Universe

Exoplanet

HD 59686 A b

291.17 light-years

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Discovery
Radial Velocity · 2016
Radius
12.7 Earth radii
Mass
2,199.3836 (+57.2094 / −76.2792) Earth masses
Orbital period
299.36 (+0.26 / −0.31) days
Semi-major axis
1.086 (+6 × 10⁻⁴ / −7 × 10⁻⁴) AU
Equilibrium temperature
783.08 (+9.77 / −9.77) 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