Exoplanet
GJ 1214 b
47.76 light-years
- Discovery
- Transit · 2009
- Radius
- 2.733 (+0.033 / −0.031) Earth radii
- Mass
- 8.41 (+0.36 / −0.35) Earth masses
- Orbital period
- 1.5804 (+1.8 × 10⁻⁸ / −1.7 × 10⁻⁸) days
- Semi-major axis
- 0.0151 (+1.1 × 10⁻⁴ / −1.1 × 10⁻⁴) AU
- Equilibrium temperature
- 567 (+7.6 / −7.6) K
- Mass provenance
- Mass
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