Exoplanet
HD 171028 b
364.18 light-years
- Discovery
- Radial Velocity · 2007
- Radius
- 13.2 Earth radii
- Mass
- 832.7146 (+50.8528 / −50.8528) Earth masses
- Orbital period
- 550 (+3 / −3) days
- Semi-major axis
- 1.32 (+0.03 / −0.03) AU
- Equilibrium temperature
- 374.07 (+6.88 / −6.88) 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