Planet GJ 3222 Ab

Detailed information about planet GJ 3222 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
GJ 3222 Ab
Planet Status
Confirmed
Discovered in
2022
Update
2024-09-28
Mass
0.038 ( +0.011 -0.006 ) MJ
Mass*sin(i)
0.038 ( +0.011 -0.006 ) MJ
Semi-Major Axis
0.091 ( ± 0.004 ) AU
Orbital Period
10.7 ( +0.003 -0.002 ) day
Eccentricity
0.913 ( +0.042 -0.08 )
ω
290.895 ( +24.72 -27.775 ) deg
Tperi
—
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
9.601 ( +8.305 -3.033 ) m/s
Calculated temperature
—
Measured temperature
—
Hottest point longitude
—
Geometric albedo
—
Surface gravity log(g/gH)
—
Alternate Names
HD 21175 b, HD 21175 Ab
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
GJ 3222 A
Distance
17.692 ( ± 0.00785 ) pc
Spectral type
K0V
Apparent magnitude V
6.9
Mass
0.86 ( ± 0.04 ) MSun
Age
3.7 ( +1.7 -3.3 ) Gyr
Effective temperature
5257.46 K
Radius
—
Metallicity [Fe/H]
0.16 ( ± 0.06 )
Detected Disc
—
Magnetic Field
—
RA2000
03:23:35.3
Dec2000
-40:04:35.0
Alternate Names
HD 21175, HD 21175 A, HIP 15799

Philipot et al. (2023): GJ 3222 forms a binary system with an M dwarf companion star in eccentric orbit (a = 43 AUs, e = 0.23 ± 0.13, i = 27°).

No link