Exoplanet
K2-129 b
90.66 light-years
- Discovery
- Transit · 2017
- Radius
- 1.04 (+0.1 / −0.09) Earth radii
- Mass
- 1.12 Earth masses
- Orbital period
- 8.2395 (+2.92 × 10⁻⁴ / −2.91 × 10⁻⁴) days
- Semi-major axis
- 0.057 (+3 × 10⁻³ / −4 × 10⁻³) AU
- Equilibrium temperature
- 419.19 (+24.22 / −24.22) 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