Skip to content
Public Universe

Exoplanet

GJ 2126 b

124.36 light-years

Add to an observing list or journal →
Discovery
Radial Velocity · 2025
Radius
13.6 Earth radii
Mass
413.1769 (+63.5657 / −31.7828) Earth masses
Orbital period
272.7 (+0.1 / −0.1) days
Semi-major axis
0.71 (+0.03 / −0.03) AU
Equilibrium temperature
203.08 (+12.5 / −12.5) 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