Planet HD 143811 (AB)b

Detailed information about planet HD 143811 (AB)b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
HD 143811 (AB)b
Planet Status
Confirmed
Discovered in
2025
Publication
Status
—
Update
2025-09-09
Mass
5.6 ( ± 1.1 ) MJ
Mass*sin(i)
—
Semi-Major Axis
63.88 AU
Orbital Period
119181.0 day
Eccentricity
0.23
Angular distance
—
ω
180.0 deg
Tperi
2459112.574 JD
Radius
1.4 ( ± 0.1 ) RJ
Inclination
37.5 deg
Detection Method
Imaging
Mass Meas. Method
Spectrum
Radius Meas. Method
—
Primary transit
—
Secondary transit
—
λ
—
Impact Parameter b
—
Time Vr=0
—
Velocity Semiamplitude K
—
Calculated temperature
1000.0 ( ± 30.0 ) K
Measured temperature
1042.0 K
Hottest point longitude
—
Geometric albedo
—
Surface gravity log(g/gH)
—
Alternate Names
—
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

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Star

Name
HD 143811 (AB)
Distance
136.86 pc
Spectral type
F5V+F8V
Apparent magnitude V
—
Apparent magnitude I
—
Apparent magnitude J
—
Apparent magnitude H
—
Apparent magnitude K
—
Mass
2.5 MSun
Age
0.018 ( ± 0.003 ) Gyr
Effective temperature
6575.0 ( ± 325.0 ) K
Radius
—
Metallicity [Fe/H]
—
Detected Disc
—
Magnetic Field
—
RA2000
16:03:33.4
Dec2000
-30:08:13.4
Alternate Names
—

09 Sept 2025:
The stars is a 18.5 day period binary with individual masses 1.24 < m1 < 1.4 MSol and 1.08 < m2 < 1.28 MSol (Peck et al. 2025). Member of Scorpius-Centaurus Association.

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