HD 221585 b
A confirmed exoplanet orbiting HD 221585.
Compared with Earth
- Mass
- About 512 times Earth's mass.
- Year
- A year here lasts about 3.2 Earth years.
Planet
- Radius
- Unknown
- Mass
- 511.7 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 1,173 days
- Average distance from its star
- 2.306 AU
Star
- Host star
- HD 221585
- Spectral class
- G — sun-like
- Surface temperature
- 5,620 K
- Radius
- Unknown
- Mass
- 1.19 × Sun
- Age
- 6.2 billion years
System
- Distance from Earth
- 182.2 light-years (55.85 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2016
- Method
- Radial Velocity
- Facility
- Haute-Provence Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.