Exoplanet
K2-81 b
822.95 light-years
- Discovery
- Transit · 2016
- Radius
- 1.97 (+0.13 / −0.11) Earth radii
- Mass
- 4.54 Earth masses
- Orbital period
- 6.1023 (+3.9 × 10⁻⁴ / −4.07 × 10⁻⁴) days
- Semi-major axis
- 0.059 (+2 × 10⁻³ / −2 × 10⁻³) AU
- Equilibrium temperature
- 739.23 (+31.6 / −31.6) 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