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Public Universe

Exoplanet

GJ 9689 b

99.87 light-years

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Discovery
Radial Velocity · 2020
Radius
3.07 Earth radii
Mass
9.65 (+1.41 / −1.41) Earth masses
Orbital period
18.27 (+0.01 / −0.01) days
Semi-major axis
0.1139 (+3.9 × 10⁻³ / −3.9 × 10⁻³) AU
Equilibrium temperature
453.04 (+39.15 / −39.16) 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