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Exoplanet

HATS-66 b

4,820.53 light-years

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Discovery
Transit · 2018
Radius
15.8159 (+0.9416 / −0.9416) Earth radii
Mass
1,694.0339 (+216.1244 / −216.1244) Earth masses
Orbital period
3.1414 (+7.4 × 10⁻⁶ / −7.4 × 10⁻⁶) days
Semi-major axis
0.0471 (+2.5 × 10⁻⁴ / −2.5 × 10⁻⁴) AU
Equilibrium temperature
1,998 (+21 / −21) 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