Exoplanet
HD 181720 b
196.36 light-years
- Discovery
- Radial Velocity · 2009
- Radius
- 14 Earth radii
- Mass
- 127.132 (+19.0698 / −19.0698) Earth masses
- Orbital period
- 956 (+14 / −14) days
- Semi-major axis
- 1.85 (+0.04 / −0.04) AU
- Equilibrium temperature
- 249.06 (+6.6 / −6.6) 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: 2026-10-12T04:16:06.699934+00:00