Skip to content
Public Universe

Exoplanet

HD 290327 b

184.06 light-years

Add to an observing list or journal →
Discovery
Radial Velocity · 2009
Radius
13.3 Earth radii
Mass
772.3269 (+133.4886 / −133.4886) Earth masses
Orbital period
2,443 (+160 / −160) days
Semi-major axis
3.43 (+0.16 / −0.16) AU
Equilibrium temperature
139.7 (+4.25 / −4.25) 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