HD 143811 AB b
Orbiting HD 143811 A
HD 143811 AB b is an exoplanet orbiting the star HD 143811 A, discovered in 2025 using the Imaging method. It is a Jupiter-sized world.
Radius
15.69
Earth radii
Mass
1938.75
Earth masses
Orbital Period
117000.0
days
Distance
136.6
parsecs
Radius (Earth radii)
15.69
Mass (Earth masses)
1938.75
Measured
Equilibrium Temperature
Unknown
Parameter source: Squicciarini et al. 2025
Orbital Period
117000.000+90600.000−31000.000days
Semi-Major Axis
63.0000+30.0000−12.0000au
Planet Mass (Earth masses)
1938.75+222.48−286.05
Planet Mass (Jupiter masses)
6.1000+0.7000−0.9000
Eccentricity
0.1900+0.1200−0.1200
Distance from Earth
136.6 pc (~446 ly)
Spectral Type
Unknown
Temperature
6791 K
Mass (Solar)
1.32 M☉
Radius (Solar)
Unknown
Luminosity
Unknown
Planets in System
1
Stars in System
2
Coordinates (RA, Dec)
240.8892°, -30.1372°
Discovery Method
Imaging
Discovery Year
2025
Source ID: HD 143811 AB b
HD 143811 AB b orbits HD 143811 A and was reported in 2025 and was detected with the Imaging method.
Published measurements list a radius of 15.69 Earth radii, a mass of 1,938.75 Earth masses, and an orbital period of 117,000 days.
Catalog data places the system at about 136.6 parsecs from Earth and 1 known planet in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open HD 143811 A