HD 220689 b
A confirmed exoplanet orbiting HD 220689.
Compared with Earth
- Mass
- About 355 times Earth's mass.
- Year
- A year here lasts about 6.2 Earth years.
Planet
- Radius
- Unknown
- Mass
- 355.3 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 2,266 days
- Average distance from its star
- 3.396 AU
Star
- Host star
- HD 220689
- Spectral class
- G — sun-like
- Surface temperature
- 5,921 K
- Radius
- 1.068 × Sun
- Mass
- 1.016 × Sun
- Age
- 4.586 billion years
System
- Distance from Earth
- 152.9 light-years (46.88 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2012
- Method
- Radial Velocity
- Facility
- La Silla Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.