Exoplanet
HAT-P-42 b
1,321.71 light-years
- Discovery
- Transit · 2012
- Radius
- 14.348 (+1.715 / −1.715) Earth radii
- Mass
- 331.801 (+26.379 / −26.379) Earth masses
- Orbital period
- 4.6419 (+3.2 × 10⁻⁵ / −3.2 × 10⁻⁵) days
- Semi-major axis
- 0.0575 (+1.1 × 10⁻³ / −1.1 × 10⁻³) AU
- Equilibrium temperature
- 1,428 (+60 / −60) 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