Exoplanet
Kepler-1999 b
2,287.19 light-years
- Discovery
- Transit · 2023
- Radius
- 3.29 (+0.26 / −0.3) Earth radii
- Mass
- 10.8 Earth masses
- Orbital period
- 8.7397 (+3.092 × 10⁻⁴ / −3.092 × 10⁻⁴) days
- Semi-major axis
- 0.0713 AU
- Equilibrium temperature
- 577 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