HD 217786 b
Orbiting HD 217786
HD 217786 b is an exoplanet orbiting the star HD 217786, discovered in 2011 using the Radial Velocity method.
Mass
4402.56
Earth masses
Orbital Period
1301.4
days
Distance
55.5
parsecs
Radius (Earth radii)
Unknown
Mass (Earth masses)
4402.56
Measured
Equilibrium Temperature
Unknown
Parameter source: Feng et al. 2022
Orbital Period
1301.360+1.175−0.486days
Semi-Major Axis
2.4460+0.1090−0.1190au
Planet Mass (Earth masses)
4402.56+402.69−416.67
Planet Mass (Jupiter masses)
13.8520+1.2670−1.3110
Eccentricity
0.3110+0.0020−0.0030
Epoch of Periastron
2453432.03+0.79−0.53days(BJD)
Argument of Periastron
100.2+0.2−0.7deg
Radial Velocity Semi-Amplitude
231.50+0.25−0.13m/s
Distance from Earth
55.5 pc (~181 ly)
Spectral Type
Unknown
Temperature
Unknown
Mass (Solar)
1.14 M☉
Radius (Solar)
Unknown
Luminosity
Unknown
Planets in System
2
Stars in System
2
Coordinates (RA, Dec)
345.7838°, -0.4304°
Discovery Method
Radial Velocity
Discovery Year
2011
Source ID: HD 217786 b
HD 217786 b orbits HD 217786 and was reported in 2011 and was detected with the Radial Velocity method.
Published measurements list a mass of 4,402.56 Earth masses and an orbital period of 1,301.36 days.
Catalog data places the system at about 55.5 parsecs from Earth and 2 known planets in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open HD 217786More planets in this system