Exoplanet
HD 219134 b
21.3 light-years
- Discovery
- Radial Velocity · 2015
- Radius
- 1.602 (+0.055 / −0.055) Earth radii
- Mass
- 4.74 (+0.19 / −0.19) Earth masses
- Orbital period
- 3.0929 (+1 × 10⁻⁵ / −1 × 10⁻⁵) days
- Semi-major axis
- 0.0388 (+4.7 × 10⁻⁴ / −4.7 × 10⁻⁴) AU
- Equilibrium temperature
- 1,015 (+8 / −8) 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