Exoplanet
HD 20781 b
117.32 light-years
- Discovery
- Radial Velocity · 2019
- Radius
- 1.21 Earth radii
- Mass
- 1.93 (+0.39 / −0.36) Earth masses
- Orbital period
- 5.3135 (+1 × 10⁻³ / −1 × 10⁻³) days
- Semi-major axis
- 0.0529 (+2.4 × 10⁻³ / −2.7 × 10⁻³) AU
- Equilibrium temperature
- 1,006.1 (+28.5 / −28.5) 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