Exoplanet
USco1621 b
449.77 light-years
- Discovery
- Imaging · 2019
- Radius
- 12.2 Earth radii
- Mass
- 5,085.28 (+635.66 / −635.66) Earth masses
- Orbital period
- Unknown
- Semi-major axis
- 2,880 (+20 / −20) AU
- Equilibrium temperature
- 2,270 (+90 / −90) 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