GJ 3222 b
Orbiting GJ 3222
GJ 3222 b is an exoplanet orbiting the star GJ 3222, discovered in 2022 using the Radial Velocity method.
Minimum Mass (M sin i)
11.44
Earth masses
Orbital Period
10.7
days
Distance
18.2
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
11.44
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Feng et al. 2022
Orbital Period
10.667+0.003−0.002days
Semi-Major Axis
0.0910+0.0040−0.0040au
M sin(i) (Earth masses)
11.44+3.50−1.91
M sin(i) (Jupiter masses)
0.0360+0.0110−0.0060
Eccentricity
0.9290+0.0420−0.0800
Epoch of Periastron
2456563.98+0.31−0.35days(BJD)
Argument of Periastron
290.9+24.7−27.8deg
Radial Velocity Semi-Amplitude
9.60+8.30−3.03m/s
Distance from Earth
18.2 pc (~59 ly)
Spectral Type
Unknown
Temperature
Unknown
Mass (Solar)
0.89 M☉
Radius (Solar)
Unknown
Luminosity
Unknown
Planets in System
1
Stars in System
2
Coordinates (RA, Dec)
50.8972°, -40.0762°
Discovery Method
Radial Velocity
Discovery Year
2022
Source ID: GJ 3222 b
GJ 3222 b orbits GJ 3222 and was reported in 2022 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 11.44 Earth masses (M sin i) and an orbital period of 10.67 days.
Catalog data places the system at about 18.2 parsecs from Earth and 1 known planet in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open GJ 3222