XO-2 S d
Orbiting XO-2 S
XO-2 S d is an exoplanet orbiting the star XO-2 S, discovered in 2024 using the Radial Velocity method.
Minimum Mass (M sin i)
1179.14
Earth masses
Orbital Period
4696.0
days
Distance
151.4
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
1179.14
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Ruggieri et al. 2024
Orbital Period
4696.000+1133.000−489.000days
Semi-Major Axis
5.4600+0.8500−0.4000au
M sin(i) (Earth masses)
1179.14+381.39−162.09
M sin(i) (Jupiter masses)
3.7100+1.2000−0.5100
Eccentricity
0.0910+0.0280−0.0180
Epoch of Periastron
2459923.00+131.00−489.00days(BJD)
Argument of Periastron
115.0+22.0−50.0deg
Radial Velocity Semi-Amplitude
45.60+10.00−4.40m/s
Distance from Earth
151.4 pc (~494 ly)
Spectral Type
G8 V
Temperature
5325 K
Mass (Solar)
0.98 M☉
Radius (Solar)
1.02 R☉
Luminosity
Unknown
Planets in System
4
Stars in System
2
Coordinates (RA, Dec)
117.0310°, 50.2169°
Discovery Method
Radial Velocity
Discovery Year
2024
Source ID: XO-2 S d
XO-2 S d orbits XO-2 S and was reported in 2024 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 1,179.14 Earth masses (M sin i) and an orbital period of 4,696 days.
Catalog data places the system at about 151.4 parsecs from Earth, a host star classified as G8 V, and 4 known planets in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open XO-2 S