Planet HD 185283 Ab

Detailed information about planet HD 185283 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
HD 185283 Ab
Planet Status
Confirmed
Discovered in
2023
Publication
Status
Published in a refereed paper
Update
2025-03-28
Mass
1.3 ( +0.3 -0.1 ) MJ
Mass*sin(i)
—
Semi-Major Axis
4.6 ( +0.2 -0.1 ) AU
Orbital Period
4000.0 ( +148.0 -112.0 ) day
Eccentricity
0.07 ( ± 0.05 )
Angular distance
—
ω
281.0 ( ± 38.0 ) deg
Tperi
—
Radius
—
Inclination
91.0 ( ± 31.0 ) deg
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
—
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 the specific Planets in Binaries webpage.

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Star

Name
HD 185283 A
Distance
31.32 ( ± 0.02 ) pc
Spectral type
K3V
Apparent magnitude V
9.0
Apparent magnitude I
—
Apparent magnitude J
—
Apparent magnitude H
—
Apparent magnitude K
—
Mass
0.79 ( ± 0.0964 ) MSun
Age
6.9 ( ± 4.7 ) Gyr
Effective temperature
4848.0 ( ± 158.7 ) K
Radius
0.743 ( ± 0.0635 ) RSun
Metallicity [Fe/H]
-0.06 ( ± 0.07 )
Detected Disc
—
Magnetic Field
—
RA2000
19:41:18.0
Dec2000
-56:19:19.0
Alternate Names

Gonzalez-Payo et al. (2024): an M dwarf companion star lies 945 arcseconds away (ca. 29,628 AUs at 31 pc). Stellar parameters for companion star cfr. Fouesneau et al. (2022).

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