Planet HD 18143 Ac

Detailed information about planet HD 18143 Ac and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
HD 18143 Ac
Planet Status
Confirmed
Discovered in
2022
Update
2024-07-28
Mass
9.998 ( +1.961 -1.871 ) MJ
Mass*sin(i)
—
Semi-Major Axis
17.53 ( +6.587 -3.447 ) AU
Orbital Period
28982.4 ( +18264.6 -7978.2 ) day
Eccentricity
0.194 ( +0.021 -0.097 )
ω
313.318 ( +23.219 -26.019 ) deg
Tperi
—
Radius
—
Inclination
35.98 ( +2.853 -1.948 ) deg
Detection Method
Radial Velocity, Astrometry
Mass Meas. Method
Astrometry
Radius Meas. Method
—
Primary transit
—
Secondary transit
—
λ
—
Impact Parameter b
—
Time Vr=0
—
Velocity Semiamplitude K
43.943 ( +4.234 -4.749 ) 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

See also Planets in Binaries webpage.

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Star

Name
HD 18143 A
Distance
22.5243 ( ± 0.023 ) pc
Spectral type
K0V
Apparent magnitude V
7.68
Mass
0.85 ( ± 0.103 ) MSun
Age
—
Effective temperature
5078.0 ( ± 127.982 ) K
Radius
0.894 ( ± 0.0555 ) RSun
Metallicity [Fe/H]
—
Detected Disc
—
Magnetic Field
—
RA2000
02:55:39.1
Dec2000
+26:52:23.6
Alternate Names
GJ 9105 A, LDS 883 A, STF 326 A

HD 18143 forms a widely separated (a = 107.6AUs) binary with a late K dwarf companion star (spT K7.5V). An additional companion star, an M dwarf (HD 18143 C, spT M4V), lies further out, 985 AUs away.

No link