Exoplanet
GJ 3998 c
59.18 light-years
- Discovery
- Radial Velocity · 2016
- Radius
- 2.5 Earth radii
- Mass
- 6.82 (+0.78 / −0.75) Earth masses
- Orbital period
- 13.727 (+3 × 10⁻³ / −4 × 10⁻³) days
- Semi-major axis
- 0.09 (+3 × 10⁻³ / −3 × 10⁻³) AU
- Equilibrium temperature
- 423.49 (+23.62 / −23.62) 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