Exoplanet
HD 9446 c
164.22 light-years
- Discovery
- Radial Velocity · 2009
- Radius
- 13.4 Earth radii
- Mass
- 578.426 (+54.0288 / −54.0288) Earth masses
- Orbital period
- 192.9 (+0.9 / −0.9) days
- Semi-major axis
- 0.654 (+0.022 / −0.022) AU
- Equilibrium temperature
- 345.42 K
- Mass provenance
- Msini
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