Planet HD 155233 Ab

Detailed information about planet HD 155233 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
HD 155233 Ab
Planet Status
Confirmed
Discovered in
2015
Publication
Status
—
Update
2025-07-26
Mass
31.9 ( +8.5 -5.3 ) MJ
Mass*sin(i)
2.6 ( +0.3 -0.3 ) MJ
Semi-Major Axis
2.0 ( ± 0.06 ) AU
Orbital Period
818.8 ( ± 12.0 ) day
Eccentricity
0.08 ( ± 0.04 )
Angular distance
—
ω
157.0 ( +44.0 -50.0 ) deg
Tperi
2456282.0 ( ± 192.0 ) JD
Radius
—
Inclination
5.2 ( ± 1.1 ) 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
40.5 ( ± 3.1 ) m/s
Calculated temperature
—
Measured temperature
—
Hottest point longitude
—
Geometric albedo
—
Surface gravity log(g/gH)
—
Alternate Names
HIP 84056 b
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 155233 A
Distance
75.1 ( ± 3.3 ) pc
Spectral type
K1III
Apparent magnitude V
6.8
Apparent magnitude I
—
Apparent magnitude J
—
Apparent magnitude H
—
Apparent magnitude K
—
Mass
1.5 ( ± 0.2 ) MSun
Age
—
Effective temperature
4845.0 ( ± 100.0 ) K
Radius
5.0 ( ± 0.3 ) RSun
Metallicity [Fe/H]
0.1 ( ± 0.07 )
Detected Disc
—
Magnetic Field
—
RA2000
17:11:04.0
Dec2000
-20:39:16.0
Alternate Names
—

An M dwarf companion star lies 921 AUs away.

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