Exoplanet
HD 143811 AB b
445.56 light-years
- Discovery
- Imaging · 2025
- Radius
- 15.6926 (+1.1209 / −1.1209) Earth radii
- Mass
- 1,938.7533 (+222.4799 / −286.0456) Earth masses
- Orbital period
- 1.17 × 10⁵ (+9.06 × 10⁴ / −3.1 × 10⁴) days
- Semi-major axis
- 63 (+30 / −12) AU
- Equilibrium temperature
- 1,042 (+178 / −132) 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