Skip to content
Public Universe

Exoplanet

HD 168443 b

129.24 light-years

Add to an observing list or journal →
Discovery
Radial Velocity · 1998
Radius
12.6 Earth radii
Mass
2,424.3951 (+192.604 / −201.1854) Earth masses
Orbital period
58.1119 (+2.4 × 10⁻⁴ / −1.8 × 10⁻⁴) days
Semi-major axis
0.292 (+0.011 / −0.012) AU
Equilibrium temperature
641.03 (+15.59 / −15.59) 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