Exoplanet
HIP 56640 b
398.97 light-years
- Discovery
- Radial Velocity · 2021
- Radius
- 12.7 Earth radii
- Mass
- 2,151.6983 (+590.843 / −385.5259) Earth masses
- Orbital period
- 2,675.576 (+183.354 / −108.2979) days
- Semi-major axis
- 4.55 (+0.221 / −0.15) AU
- Equilibrium temperature
- 239.37 (+5.74 / −5.74) 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