Exoplanet
TOI-257 b
250.82 light-years
- Discovery
- Transit · 2021
- Radius
- 7.1625 (+0.1457 / −0.1457) Earth radii
- Mass
- 43.8603 (+7.3101 / −7.3101) Earth masses
- Orbital period
- 18.3882 (+8.5 × 10⁻⁴ / −8.4 × 10⁻⁴) days
- Semi-major axis
- 0.1528 (+1.6 × 10⁻³ / −1.7 × 10⁻³) AU
- Equilibrium temperature
- 1,027 (+18 / −18) 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