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Exoplanet

HAT-P-51 b

1,435.38 light-years

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Discovery
Transit · 2015
Radius
13.5068 (+0.1906 / −0.1793) Earth radii
Mass
97.5733 (+6.6744 / −6.3566) Earth masses
Orbital period
4.218 (+6.6 × 10⁻⁷ / −6.6 × 10⁻⁷) days
Semi-major axis
0.0504 (+6.8 × 10⁻⁴ / −6.5 × 10⁻⁴) AU
Equilibrium temperature
1,168.2 (+6.9 / −7) K
Mass provenance
Mass

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