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Public Universe

Exoplanet

HD 87816 b

434.55 light-years

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Discovery
Radial Velocity · 2025
Radius
12.7 Earth radii
Mass
2,142.1635 (+41.3177 / −41.3177) Earth masses
Orbital period
484.17 (+0.13 / −0.12) days
Semi-major axis
1.618 (+3 × 10⁻⁴ / −3 × 10⁻⁴) AU
Equilibrium temperature
567.39 (+7.95 / −7.95) 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