HD 164509 b
A confirmed exoplanet orbiting HD 164509.
Compared with Earth
- Mass
- About 141 times Earth's mass.
- Year
- A year here lasts about 280 Earth days.
Planet
- Radius
- Unknown
- Mass
- 140.8 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 280.2 days
- Average distance from its star
- 0.87 AU
Star
- Host star
- HD 164509
- Spectral class
- G — sun-like
- Surface temperature
- 5,859 K
- Radius
- 1.11 × Sun
- Mass
- 1.12 × Sun
- Age
- 2.32 billion years
System
- Distance from Earth
- 173.2 light-years (53.11 parsecs)
- Stars in system
- 2
- Known planets
- 1
Discovery
- Year
- 2012
- Method
- Radial Velocity
- Facility
- W. M. Keck Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.