Exoplanet
K2-281 b
1,494.25 light-years
- Discovery
- Transit · 2018
- Radius
- 8.18 (+0.21 / −0.21) Earth radii
- Mass
- 50.9 Earth masses
- Orbital period
- 8.6877 (+1.51 × 10⁻⁴ / −1.5 × 10⁻⁴) days
- Semi-major axis
- 0.0773 (+8 × 10⁻⁴ / −8 × 10⁻⁴) AU
- Equilibrium temperature
- 665 (+12 / −12) 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