HD 111591 b
A confirmed exoplanet orbiting HD 111591.
Compared with Earth
- Mass
- About 1,398 times Earth's mass.
- Year
- A year here lasts about 2.9 Earth years.
Planet
- Radius
- Unknown
- Mass
- 1,398 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 1,056 days
- Average distance from its star
- 2.5 AU
Star
- Host star
- HD 111591
- Spectral class
- K — orange dwarf
- Surface temperature
- 4,884 K
- Radius
- 8.03 × Sun
- Mass
- 1.94 × Sun
- Age
- 1.41 billion years
System
- Distance from Earth
- 372.4 light-years (114.2 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2017
- Method
- Radial Velocity
- Facility
- Multiple Observatories
Data from the NASA Exoplanet Archive, synced October 14, 2026.