Planet HIP 90988 Ab

Detailed information about planet HIP 90988 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
HIP 90988 Ab
Planet Status
Confirmed
Discovered in
2020
Update
2024-07-28
Mass
1.96 ( ± 0.09 ) MJ
Mass*sin(i)
1.96 ( ± 0.09 ) MJ
Semi-Major Axis
1.26 ( ± 0.01 ) AU
Orbital Period
453.9 ( ± 2.0 ) day
Eccentricity
0.08 ( ± 0.05 )
ω
161.6 ( ± 23.9 ) deg
Tperi
2455309.2 ( ± 30.2 ) JD
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
43.6 ( ± 2.1 ) 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
HIP 90988 A
Distance
94.29 ( ± 0.5 ) pc
Spectral type
K1III
Apparent magnitude V
7.8
Mass
1.3 ( ± 0.08 ) MSun
Age
—
Effective temperature
4884.0 ( ± 58.0 ) K
Radius
3.94 ( ± 0.04 ) RSun
Metallicity [Fe/H]
0.17 ( ± 0.06 )
Detected Disc
—
Magnetic Field
—
RA2000
18:33:33.0
Dec2000
-50:12:42.0
Alternate Names
—

Feng et al. (2020) detect an outer low-mass companion star (mB = 101 MJup) in eccentric orbit (a = 7.486 AUs, e = 0.289).

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