Planet HD 23439 Ab

Detailed information about planet HD 23439 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
HD 23439 Ab
Planet Status
Candidate
Discovered in
2020
Update
2024-06-28
Mass
0.029 ( ± 0.004 ) MJ
Mass*sin(i)
0.029 ( ± 0.004 ) MJ
Semi-Major Axis
0.2131 ( ± 8e-05 ) AU
Orbital Period
45.68 ( +0.03 -0.02 ) day
Eccentricity
0.5 ( ± 0.1 )
ω
-1.1 ( +0.3 -0.4 ) deg
Tperi
—
Radius
—
Inclination
—
Detection Method
Radial Velocity
Mass Meas. Method
Radial Velocity
Radius Meas. Method
—
Primary transit
—
Secondary transit
—
λ
—
Impact Parameter b
—
Time Vr=0
—
Velocity Semiamplitude K
2.6 ( ± 0.4 ) m/s
Calculated temperature
—
Measured temperature
—
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 23439 A
Distance
23.8899 ( ± 0.02315 ) pc
Spectral type
K2V
Apparent magnitude V
8.12
Mass
0.86 ( ± 0.103 ) MSun
Age
—
Effective temperature
5098.53 ( ± 103.519 ) K
Radius
0.723 ( ± 0.0372 ) RSun
Metallicity [Fe/H]
-1.05119 ( ± 0.0166 )
Detected Disc
—
Magnetic Field
—
RA2000
03:47:02.1
Dec2000
+41:25:38.1
Alternate Names
*V580 Per, GJ 1064 A, GJ 9130 A

HD 23439 forms a widely separated (a ~ 170 AUs) binary system with a K3 dwarf companion star.

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