Exoplanet
HAT-P-57 b
912.78 light-years
- Discovery
- Transit · 2015
- Radius
- 19.5037 (+4.0352 / −4.0352) Earth radii
- Mass
- 448.1403 (+483.1016 / −483.1016) Earth masses
- Orbital period
- 2.4653 (+3 × 10⁻⁶ / −3 × 10⁻⁶) days
- Semi-major axis
- 0.0406 (+1.1 × 10⁻³ / −1.1 × 10⁻³) AU
- Equilibrium temperature
- 2,200 (+76 / −76) 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