HD 109286 b
Orbiting HD 109286
HD 109286 b is an exoplanet orbiting the star HD 109286, discovered in 2021 using the Radial Velocity method.
Minimum Mass (M sin i)
950.31
Earth masses
Orbital Period
520.1
days
Distance
55.4
parsecs
Equilibrium Temp
259
K
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
950.31
Radial-velocity minimum
Equilibrium Temperature
259 K
Parameter source: Demangeon et al. 2021
Orbital Period
520.100+2.300−2.300days
Semi-Major Axis
1.2590+0.0210−0.0220au
M sin(i) (Earth masses)
950.31+47.67−47.67
M sin(i) (Jupiter masses)
2.9900+0.1500−0.1500
Eccentricity
0.3380+0.0340−0.0350
Epoch of Periastron
2456094.70+8.60−9.20days(BJD)
Argument of Periastron
133.1+7.3−7.4deg
Radial Velocity Semi-Amplitude
81.60+2.80−2.70m/s
Distance from Earth
55.4 pc (~181 ly)
Spectral Type
G4 V
Temperature
5694 K
Mass (Solar)
0.98 M☉
Radius (Solar)
1.09 R☉
Luminosity
Unknown
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
188.3958°, 7.2809°
Discovery Method
Radial Velocity
Discovery Year
2021
Source ID: HD 109286 b
HD 109286 b orbits HD 109286 and was reported in 2021 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 950.31 Earth masses (M sin i), an orbital period of 520.1 days, and an equilibrium temperature near 259 K.
Catalog data places the system at about 55.4 parsecs from Earth, a host star classified as G4 V, 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 109286