Exoplanet
TOI-421 b
243.95 light-years
- Discovery
- Transit · 2020
- Radius
- 2.64 (+0.08 / −0.08) Earth radii
- Mass
- 6.7 (+0.6 / −0.6) Earth masses
- Orbital period
- 5.1976 (+5 × 10⁻⁶ / −5 × 10⁻⁶) days
- Semi-major axis
- 0.0554 (+1 × 10⁻³ / −1 × 10⁻³) AU
- Equilibrium temperature
- 922 (+14 / −14) 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