HD 220197 b
Orbiting HD 220197
HD 220197 b is an exoplanet orbiting the star HD 220197, discovered in 2018 using the Radial Velocity method.
Minimum Mass (M sin i)
63.57
Earth masses
Orbital Period
1728.0
days
Distance
64.4
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
63.57
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Barbato et al. 2019
Orbital Period
1728.000+162.000−80.000days
Semi-Major Axis
2.7290+0.1680−0.0850au
M sin(i) (Earth masses)
63.57+22.25−12.71
M sin(i) (Jupiter masses)
0.2000+0.0700−0.0400
Eccentricity
0.1870+0.2790−0.1320
Epoch of Periastron
2456636.30+196.10−428.00days(BJD)
Argument of Periastron
159.0+54.9−80.9deg
Radial Velocity Semi-Amplitude
3.78+1.78−0.72m/s
Distance from Earth
64.4 pc (~210 ly)
Spectral Type
Unknown
Temperature
5683 K
Mass (Solar)
0.91 M☉
Radius (Solar)
0.98 R☉
Luminosity
Unknown
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
350.4947°, 16.6323°
Discovery Method
Radial Velocity
Discovery Year
2018
Source ID: HD 220197 b
HD 220197 b orbits HD 220197 and was reported in 2018 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 63.57 Earth masses (M sin i) and an orbital period of 1,728 days.
Catalog data places the system at about 64.4 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 220197