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Exoplanet

Kepler-1539 b

2,440.71 light-years

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Discovery
Transit · 2016
Radius
2.7 (+0.19 / −0.15) Earth radii
Mass
7.75 Earth masses
Orbital period
133.3037 (+8.843 × 10⁻⁴ / −8.843 × 10⁻⁴) days
Semi-major axis
0.4765 AU
Equilibrium temperature
301 K
Mass provenance
M-R relationship

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