Exoplanet
HD 190228 b
204.55 light-years
- Discovery
- Radial Velocity · 2022
- Radius
- 12.9 Earth radii
- Mass
- 1,598.6769 (+378.2158 / −0.9535) Earth masses
- Orbital period
- 1,143.5986 (+1.7674 / −1.7068) days
- Semi-major axis
- 2.406 (+0.045 / −0.047) AU
- Equilibrium temperature
- 267.99 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