Exoplanet
HAT-P-20 b
231.69 light-years
- Discovery
- Transit · 2010
- Radius
- 9.718 (+0.37 / −0.37) Earth radii
- Mass
- 2,302.899 (+59.432 / −59.432) Earth masses
- Orbital period
- 2.8753 (+4 × 10⁻⁶ / −4 × 10⁻⁶) days
- Semi-major axis
- 0.0361 (+5 × 10⁻⁴ / −5 × 10⁻⁴) AU
- Equilibrium temperature
- 970 (+23 / −23) 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