HD 217107 b
A confirmed exoplanet orbiting HD 217107.
Compared with Earth
- Mass
- About 460 times Earth's mass.
- Year
- A year here lasts about 7.1 Earth days.
Planet
- Radius
- Unknown
- Mass
- 459.6 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 7.127 days
- Average distance from its star
- 0.07359 AU
Star
- Host star
- HD 217107
- Spectral class
- Unknown
- Surface temperature
- Unknown
- Radius
- 1.225 × Sun
- Mass
- 1.045 × Sun
- Age
- 11.9 billion years
System
- Distance from Earth
- 65.43 light-years (20.06 parsecs)
- Stars in system
- 1
- Known planets
- 2
Discovery
- Year
- 1998
- Method
- Radial Velocity
- Facility
- Lick Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.