Planet GJ 3222 Ac

Detailed information about planet GJ 3222 Ac and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
GJ 3222 Ac
Planet Status
Confirmed
Discovered in
2022
Publication
Status
—
Update
2024-07-28
Mass
52.213 ( +5.113 -4.946 ) MJ
Mass*sin(i)
—
Semi-Major Axis
2.391 ( +0.097 -0.109 ) AU
Orbital Period
1429.8 ( +5.9 -5.4 ) day
Eccentricity
0.537 ( +0.065 -0.038 )
Angular distance
—
ω
264.878 ( +3.189 -3.259 ) deg
Tperi
—
Radius
—
Inclination
2.081 ( +0.186 -0.16 ) 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
43.768 ( +3.976 -2.522 ) m/s
Calculated temperature
—
Measured temperature
—
Hottest point longitude
—
Geometric albedo
—
Surface gravity log(g/gH)
—
Alternate Names
HD 21175 c, HD 21175 Ac
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
Apparent magnitude I
—
Apparent magnitude J
—
Apparent magnitude H
—
Apparent magnitude K
—
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