Exoplanet
K2-253 b
2,858.97 light-years
- Discovery
- Transit · 2018
- Radius
- 12.67 (+0.69 / −0.61) Earth radii
- Mass
- Unknown
- Orbital period
- 4.0017 (+1.3 × 10⁻⁴ / −1.3 × 10⁻⁴) days
- Semi-major axis
- 0.0506 (+1 × 10⁻³ / −1.1 × 10⁻³) AU
- Equilibrium temperature
- 1,238 (+57 / −53) 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