Exoplanet
HN Lib b
20.37 light-years
- Discovery
- Radial Velocity · 2023
- Radius
- 2.2 Earth radii
- Mass
- 5.46 (+0.75 / −0.75) Earth masses
- Orbital period
- 36.116 (+0.027 / −0.029) days
- Semi-major axis
- 0.1417 (+2.3 × 10⁻³ / −2.3 × 10⁻³) AU
- Equilibrium temperature
- 234.4 (+5.5 / −5.3) 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