Exoplanet
TOI-2257 b
188.49 light-years
- Discovery
- Transit · 2021
- Radius
- 2.194 (+0.113 / −0.111) Earth radii
- Mass
- 5.45 Earth masses
- Orbital period
- 35.1893 (+9 × 10⁻⁵ / −9 × 10⁻⁵) days
- Semi-major axis
- 0.145 (+3 × 10⁻³ / −3 × 10⁻³) AU
- Equilibrium temperature
- 256 (+61 / −17) K
- Mass provenance
- M-R relationship
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