Exoplanet
Qatar-9 b
697.23 light-years
- Discovery
- Transit · 2019
- Radius
- 11.3099 (+0.1569 / −0.1569) Earth radii
- Mass
- 378.2177 (+50.8528 / −50.8528) Earth masses
- Orbital period
- 1.5407 (+3.8 × 10⁻⁵ / −3.8 × 10⁻⁵) days
- Semi-major axis
- 0.0234 (+3 × 10⁻⁴ / −3 × 10⁻⁴) AU
- Equilibrium temperature
- 1,134 (+9 / −9) K
- Mass provenance
- Mass
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