Exoplanet
HD 31527 d
125.4 light-years
- Discovery
- Radial Velocity · 2019
- Radius
- 3.46 Earth radii
- Mass
- 11.82 (+1.7 / −1.64) Earth masses
- Orbital period
- 271.6737 (+2.1135 / −2.2471) days
- Semi-major axis
- 0.8098 (+0.0273 / −0.0293) AU
- Equilibrium temperature
- 327.48 (+6.2 / −6.2) 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