Exoplanet
psi1 Dra B b
74.1 light-years
- Discovery
- Radial Velocity · 2015
- Radius
- 13.5 Earth radii
- Mass
- 486.2799 (+31.783 / −31.783) Earth masses
- Orbital period
- 3,117 (+42 / −42) days
- Semi-major axis
- 4.43 (+0.04 / −0.04) AU
- Equilibrium temperature
- 159.48 (+3.4 / −3.4) 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