Exoplanet
HAT-P-1 b
518.52 light-years
- Discovery
- Transit · 2006
- Radius
- 14.7847 (+0.213 / −0.213) Earth radii
- Mass
- 166.8608 (+6.0388 / −6.0388) Earth masses
- Orbital period
- 4.4653 (+5.5 × 10⁻⁷ / −5.5 × 10⁻⁷) days
- Semi-major axis
- 0.0556 (+8.2 × 10⁻⁴ / −8.3 × 10⁻⁴) AU
- Equilibrium temperature
- 1,322 (+14 / −15) 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