Exoplanet
HAT-P-2 b
416.74 light-years
- Discovery
- Transit · 2007
- Radius
- 10.6598 (+0.4372 / −0.5941) Earth radii
- Mass
- 2,866.8122 (+31.7828 / −31.7828) Earth masses
- Orbital period
- 5.6335 (+3.6 × 10⁻⁶ / −3.6 × 10⁻⁶) days
- Semi-major axis
- 0.0681 (+5.1 × 10⁻⁴ / −5.1 × 10⁻⁴) AU
- Equilibrium temperature
- 1,540 (+30 / −30) 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