HD 222155 b
Orbiting HD 222155
HD 222155 b is an exoplanet orbiting the star HD 222155, discovered in 2011 using the Radial Velocity method.
Minimum Mass (M sin i)
673.80
Earth masses
Orbital Period
3999.0
days
Distance
50.6
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
673.80
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Stassun et al. 2017
Orbital Period
3999.000+500.000−500.000days
Semi-Major Axis
5.1400+0.4600−0.4600au
M sin(i) (Earth masses)
673.80+158.91−158.91
M sin(i) (Jupiter masses)
2.1200+0.5000−0.5000
Eccentricity
0.1600+0.2200−0.2200
Radial Velocity Semi-Amplitude
24.20+5.60−5.60m/s
Distance from Earth
50.6 pc (~165 ly)
Spectral Type
Unknown
Temperature
5701 K
Mass (Solar)
1.21 M☉
Radius (Solar)
1.85 R☉
Luminosity
Unknown
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
354.5026°, 48.9960°
Discovery Method
Radial Velocity
Discovery Year
2011
Source ID: HD 222155 b
HD 222155 b orbits HD 222155 and was reported in 2011 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 673.8 Earth masses (M sin i) and an orbital period of 3,999 days.
Catalog data places the system at about 50.6 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 222155