Skip to content
Public Universe

Exoplanet

HD 103197 b

186.39 light-years

Add to an observing list or journal →
Discovery
Radial Velocity · 2011
Radius
5.83 Earth radii
Mass
28.6047 (+6.3566 / −6.3566) Earth masses
Orbital period
47.84 (+0.03 / −0.03) days
Semi-major axis
0.25 (+0 / −0) AU
Equilibrium temperature
474.97 (+11.1 / −11.1) 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