Exoplanet
HAT-P-40 b
1,514.9 light-years
- Discovery
- Transit · 2012
- Radius
- 17.0377 (+1.9055 / −1.9055) Earth radii
- Mass
- 152.5584 (+41.3179 / −41.3179) Earth masses
- Orbital period
- 4.4572 (+1 × 10⁻⁵ / −1 × 10⁻⁵) days
- Semi-major axis
- 0.0608 (+6 × 10⁻⁴ / −1.5 × 10⁻³) AU
- Equilibrium temperature
- 1,770 (+33 / −33) 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