HD 143811 AB b
A confirmed exoplanet orbiting HD 143811 A.
Compared with Earth
- Size
- About 16 times Earth's width.
- Mass
- About 1,939 times Earth's mass.
- Year
- A year here lasts about 320 Earth years.
Planet
- Radius
- 15.69 × Earth
- Mass
- 1,939 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 117,000 days
- Average distance from its star
- 63 AU
Star
- Host star
- HD 143811 A
- Spectral class
- F — yellow-white
- Surface temperature
- 6,791 K
- Radius
- Unknown
- Mass
- 1.32 × Sun
- Age
- 0.018 billion years
System
- Distance from Earth
- 445.6 light-years (136.6 parsecs)
- Stars in system
- 2
- Known planets
- 1
Discovery
- Year
- 2025
- Method
- Imaging
- Facility
- Paranal Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.