Exoplanet
HD 178911 B b
133.64 light-years
- Discovery
- Radial Velocity · 2001
- Radius
- 12.6 Earth radii
- Mass
- 2,552.1749 (+797.7533 / −797.7533) Earth masses
- Orbital period
- 71.484 (+0.02 / −0.02) days
- Semi-major axis
- 0.34 (+0.01 / −0.01) AU
- Equilibrium temperature
- 480.24 (+16.47 / −16.47) K
- Mass provenance
- Msini
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