HD 217958 b
Orbiting HD 217958
HD 217958 b is an exoplanet orbiting the star HD 217958, discovered in 2022 using the Radial Velocity method.
Mass
166.54
Earth masses
Orbital Period
2560.2
days
Distance
61.8
parsecs
Radius (Earth radii)
Unknown
Mass (Earth masses)
166.54
Measured
Equilibrium Temperature
Unknown
Parameter source: Feng et al. 2022
Orbital Period
2560.198+66.523−91.152days
Semi-Major Axis
3.7580+0.1690−0.2000au
Planet Mass (Earth masses)
166.54+110.29−20.02
Planet Mass (Jupiter masses)
0.5240+0.3470−0.0630
Eccentricity
0.1560+0.0930−0.0810
Epoch of Periastron
2450608.77+281.22−1475.95days(BJD)
Argument of Periastron
252.3+81.4−117.4deg
Radial Velocity Semi-Amplitude
7.47+1.42−1.12m/s
Distance from Earth
61.8 pc (~202 ly)
Spectral Type
Unknown
Temperature
Unknown
Mass (Solar)
1.08 M☉
Radius (Solar)
Unknown
Luminosity
Unknown
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
346.1366°, -25.6918°
Discovery Method
Radial Velocity
Discovery Year
2022
Source ID: HD 217958 b
HD 217958 b orbits HD 217958 and was reported in 2022 and was detected with the Radial Velocity method.
Published measurements list a mass of 166.54 Earth masses and an orbital period of 2,560.2 days.
Catalog data places the system at about 61.8 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 HD 217958