Exoplanet
HIP 99770 b
130.71 light-years
- Discovery
- Imaging · 2023
- Radius
- 12.2 Earth radii
- Mass
- 5,403.0829 (+1,906.9704 / −1,589.142) Earth masses
- Orbital period
- 1.86 × 10⁴ (+6,200 / −2,800) days
- Semi-major axis
- 15.8 (+1.7 / −1) AU
- Equilibrium temperature
- 135.17 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