HD 191939 e
Orbiting HD 191939
HD 191939 e is an exoplanet orbiting the star HD 191939, discovered in 2022 using the Radial Velocity method.
Minimum Mass (M sin i)
112.20
Earth masses
Orbital Period
101.1
days
Distance
53.6
parsecs
Equilibrium Temp
390
K
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
112.20
Radial-velocity minimum
Equilibrium Temperature
390 K
Parameter source: Orell-Miquel et al. 2023
Orbital Period
101.120+0.130−0.130days
Semi-Major Axis
0.4070+0.0120−0.0120au
M sin(i) (Earth masses)
112.20+4.00−4.00
M sin(i) (Jupiter masses)
0.3530+0.0126−0.0126
Eccentricity
0.0310+0.0080−0.0160
Argument of Periastron
-130.0+180.0−16.0deg
Radial Velocity Semi-Amplitude
17.73+0.14−0.16m/s
Distance from Earth
53.6 pc (~175 ly)
Spectral Type
G9 V
Temperature
5348 K
Mass (Solar)
0.81 M☉
Radius (Solar)
0.94 R☉
Luminosity
-0.19 log L☉
Planets in System
6
Stars in System
1
Coordinates (RA, Dec)
302.0256°, 66.8503°
Discovery Method
Radial Velocity
Discovery Year
2022
Source ID: HD 191939 e
HD 191939 e orbits HD 191939 and was reported in 2022 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 112.2 Earth masses (M sin i), an orbital period of 101.12 days, and an equilibrium temperature near 390 K.
Catalog data places the system at about 53.6 parsecs from Earth, a host star classified as G9 V, and 6 known planets in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open HD 191939More planets in this system