HD 220842 b
Orbiting HD 220842
HD 220842 b is an exoplanet orbiting the star HD 220842, discovered in 2016 using the Radial Velocity method.
Minimum Mass (M sin i)
1010.70
Earth masses
Orbital Period
218.5
days
Distance
64.6
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
1010.70
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Hébrard et al. 2016
Orbital Period
218.470+0.190−0.190days
Semi-Major Axis
0.7400+0.0180−0.0180au
M sin(i) (Earth masses)
1010.70+47.67−47.67
M sin(i) (Jupiter masses)
3.1800+0.1500−0.1500
Eccentricity
0.4040+0.0090−0.0090
Epoch of Periastron
2456624.80+0.80−0.80days(BJD)
Argument of Periastron
-134.9+1.7−1.7deg
Radial Velocity Semi-Amplitude
108.10+1.20−1.20m/s
Distance from Earth
64.6 pc (~211 ly)
Spectral Type
F8
Temperature
5960 K
Mass (Solar)
1.13 M☉
Radius (Solar)
Unknown
Luminosity
Unknown
Planets in System
1
Stars in System
2
Coordinates (RA, Dec)
351.6534°, 56.8871°
Discovery Method
Radial Velocity
Discovery Year
2016
Source ID: HD 220842 b
HD 220842 b orbits HD 220842 and was reported in 2016 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 1,010.7 Earth masses (M sin i) and an orbital period of 218.47 days.
Catalog data places the system at about 64.6 parsecs from Earth, a host star classified as F8, 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 220842