HD 180617 b
A confirmed exoplanet orbiting HD 180617.
Compared with Earth
- Mass
- About 12 times Earth's mass.
- Year
- A year here lasts about 106 Earth days.
Planet
- Radius
- Unknown
- Mass
- 12.21 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 105.9 days
- Average distance from its star
- 0.343 AU
Star
- Host star
- HD 180617
- Spectral class
- M — red dwarf
- Surface temperature
- 3,534 K
- Radius
- 0.481 × Sun
- Mass
- 0.484 × Sun
- Age
- Unknown
System
- Distance from Earth
- 19.28 light-years (5.911 parsecs)
- Stars in system
- 2
- Known planets
- 1
Discovery
- Year
- 2018
- Method
- Radial Velocity
- Facility
- Calar Alto Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.