HD 222237 b
Orbiting HD 222237
HD 222237 b is an exoplanet orbiting the star HD 222237, discovered in 2024 using the Radial Velocity method.
Mass
1649.53
Earth masses
Orbital Period
14892.0
days
Distance
11.4
parsecs
Radius (Earth radii)
Unknown
Mass (Earth masses)
1649.53
Measured
Equilibrium Temperature
Unknown
Parameter source: Xiao et al. 2024
Orbital Period
14892.000+2112.000−1655.000days
Semi-Major Axis
10.8000+1.1000−1.0000au
Planet Mass (Earth masses)
1649.53+184.34−184.34
Planet Mass (Jupiter masses)
5.1900+0.5800−0.5800
Eccentricity
0.5600+0.0300−0.0300
Epoch of Periastron
2443747.00+1661.00−2116.00days(JD)
Argument of Periastron
2.6+1.3−1.4deg
Radial Velocity Semi-Amplitude
47.40+1.10−1.00m/s
Distance from Earth
11.4 pc (~37 ly)
Spectral Type
K3 V
Temperature
4751 K
Mass (Solar)
0.76 M☉
Radius (Solar)
0.71 R☉
Luminosity
Unknown
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
354.9079°, -72.7253°
Discovery Method
Radial Velocity
Discovery Year
2024
Source ID: HD 222237 b
HD 222237 b orbits HD 222237 and was reported in 2024 and was detected with the Radial Velocity method.
Published measurements list a mass of 1,649.53 Earth masses and an orbital period of 14,892 days.
Catalog data places the system at about 11.4 parsecs from Earth, a host star classified as K3 V, 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 HD 222237