HD 9446 b
A confirmed exoplanet orbiting HD 9446.
Compared with Earth
- Mass
- About 222 times Earth's mass.
- Year
- A year here lasts about 30 Earth days.
Planet
- Radius
- Unknown
- Mass
- 222.5 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 30.05 days
- Average distance from its star
- 0.189 AU
Star
- Host star
- HD 9446
- Spectral class
- G — sun-like
- Surface temperature
- 5,793 K
- Radius
- 1 × Sun
- Mass
- 1 × Sun
- Age
- Unknown
System
- Distance from Earth
- 164.2 light-years (50.35 parsecs)
- Stars in system
- 1
- Known planets
- 2
Discovery
- Year
- 2009
- Method
- Radial Velocity
- Facility
- Haute-Provence Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.