HD 217107 c
Orbiting HD 217107
HD 217107 c is an exoplanet orbiting the star HD 217107, discovered in 2005 using the Radial Velocity method.
Mass
1388.91
Earth masses
Orbital Period
5138.7
days
Distance
20.1
parsecs
Radius (Earth radii)
Unknown
Mass (Earth masses)
1388.91
Measured
Equilibrium Temperature
Unknown
Parameter source: Giovinazzi et al. 2025
Orbital Period
5138.700+11.000−11.000days
Semi-Major Axis
5.9220+0.0350−0.0440au
Planet Mass (Earth masses)
1388.91+41.32−31.78
Planet Mass (Jupiter masses)
4.3700+0.1300−0.1000
Eccentricity
0.3918+0.0064−0.0067
Epoch of Periastron
2455911.00+15.00−15.00days(JD)
Argument of Periastron
205.0+1.1−1.1deg
Distance from Earth
20.1 pc (~65 ly)
Spectral Type
G
Temperature
Unknown
Mass (Solar)
1.04 M☉
Radius (Solar)
1.22 R☉
Luminosity
Unknown
Planets in System
2
Stars in System
1
Coordinates (RA, Dec)
344.5647°, -2.3954°
Discovery Method
Radial Velocity
Discovery Year
2005
Source ID: HD 217107 c
HD 217107 c orbits HD 217107 and was reported in 2005 and was detected with the Radial Velocity method.
Published measurements list a mass of 1,388.91 Earth masses and an orbital period of 5,138.7 days.
Catalog data places the system at about 20.1 parsecs from Earth, a host star classified as G, 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 217107More planets in this system