Planet HD 133131 Ab

Detailed information about planet HD 133131 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
HD 133131 Ab
Planet Status
Confirmed
Discovered in
2016
Publication
Status
Published in a refereed paper
Update
2025-02-11
Mass
—
Mass*sin(i)
1.43 ( +0.04 -0.04 ) MJ
Semi-Major Axis
1.44 ( ± 0.005 ) AU
Orbital Period
649.0 ( ± 3.0 ) day
Eccentricity
0.32 ( ± 0.03 )
Angular distance
—
ω
—
Tperi
—
Radius
—
Inclination
—
Detection Method
Radial Velocity
Mass Meas. Method
—
Radius Meas. Method
—
Primary transit
—
Secondary transit
—
λ
—
Impact Parameter b
—
Time Vr=0
—
Velocity Semiamplitude K
36.68 ( ± 0.93 ) 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

HD 133131A and B are separated by 360 AU. The period is approximately 4240 years.
See also Planets in Binaries webpage.

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Star

Name
HD 133131 A
Distance
47.0 pc
Spectral type
G2V
Apparent magnitude V
8.4
Apparent magnitude I
—
Apparent magnitude J
—
Apparent magnitude H
—
Apparent magnitude K
—
Mass
0.95 MSun
Age
9.7 Gyr
Effective temperature
5799.0 ( ± 19.0 ) K
Radius
—
Metallicity [Fe/H]
-0.306 ( ± 0.016 )
Detected Disc
—
Magnetic Field
—
RA2000
15:03:35.8
Dec2000
-27:50:27.6
Alternate Names

Desidera et al., A&A, 454, 553, 2006 : 133131A and 133131B are separated by approx. 360AU. The period is approx 4240 years.

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