Skip to content
Public Universe

Exoplanet

HD 21693 c

108.46 light-years

Add to an observing list or journal →
Discovery
Radial Velocity · 2019
Radius
4.34 Earth radii
Mass
17.37 (+1.77 / −1.79) Earth masses
Orbital period
53.7357 (+0.0312 / −0.0309) days
Semi-major axis
0.2586 (+0.0103 / −0.0113) AU
Equilibrium temperature
492.36 (+11.33 / −11.33) 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