HD 109988 b
Orbiting HD 109988
HD 109988 b is an exoplanet orbiting the star HD 109988, discovered in 2022 using the Radial Velocity method.
Mass
6935.33
Earth masses
Orbital Period
17132.2
days
Distance
42.5
parsecs
Radius (Earth radii)
Unknown
Mass (Earth masses)
6935.33
Measured
Equilibrium Temperature
Unknown
Parameter source: Feng et al. 2022
Orbital Period
17132.159+3942.554−2033.895days
Semi-Major Axis
12.5180+1.5170−1.3190au
Planet Mass (Earth masses)
6935.33+719.88−1320.58
Planet Mass (Jupiter masses)
21.8210+2.2650−4.1550
Eccentricity
0.0560+0.0360−0.0340
Epoch of Periastron
2445137.03+2646.31−7475.96days(BJD)
Argument of Periastron
63.5+79.9−98.7deg
Radial Velocity Semi-Amplitude
103.94+7.87−22.98m/s
Distance from Earth
42.5 pc (~139 ly)
Spectral Type
Unknown
Temperature
Unknown
Mass (Solar)
0.88 M☉
Radius (Solar)
Unknown
Luminosity
Unknown
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
189.8155°, -32.7264°
Discovery Method
Radial Velocity
Discovery Year
2022
Source ID: HD 109988 b
HD 109988 b orbits HD 109988 and was reported in 2022 and was detected with the Radial Velocity method.
Published measurements list a mass of 6,935.33 Earth masses and an orbital period of 17,132.16 days.
Catalog data places the system at about 42.5 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 109988