Exoplanet
TOI-251 b
324.6 light-years
- Discovery
- Transit · 2021
- Radius
- 2.74 (+0.18 / −0.18) Earth radii
- Mass
- < 317.83 Earth masses
- Orbital period
- 4.9378 (+2.8 × 10⁻⁵ / −2.9 × 10⁻⁵) days
- Semi-major axis
- 0.0574 (+2.3 × 10⁻⁴ / −1.7 × 10⁻⁴) AU
- Equilibrium temperature
- 1,041.19 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