Exoplanet
HD 20781 d
117.32 light-years
- Discovery
- Radial Velocity · 2019
- Radius
- 3.25 Earth radii
- Mass
- 10.61 (+1.2 / −1.19) Earth masses
- Orbital period
- 29.158 (+0.0102 / −0.01) days
- Semi-major axis
- 0.1647 (+7.6 × 10⁻³ / −8.3 × 10⁻³) AU
- Equilibrium temperature
- 570.19 (+16.17 / −16.17) 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