HD 154391 b
Orbiting HD 154391
HD 154391 b is an exoplanet orbiting the star HD 154391, discovered in 2023 using the Radial Velocity method.
Mass
2892.24
Earth masses
Orbital Period
5163.0
days
Distance
100.9
parsecs
Radius (Earth radii)
Unknown
Mass (Earth masses)
2892.24
Measured
Equilibrium Temperature
Unknown
Parameter source: Xiao et al. 2024
Orbital Period
5163.000+60.000−57.000days
Semi-Major Axis
7.4600+0.0700−0.0700au
Planet Mass (Earth masses)
2892.24+889.92−603.87
Planet Mass (Jupiter masses)
9.1000+2.8000−1.9000
Eccentricity
0.2000+0.0400−0.0400
Epoch of Periastron
2459075.00+161.00−135.00days(JD)
Argument of Periastron
310.0+11.0−10.0deg
Radial Velocity Semi-Amplitude
48.50+2.00−2.00m/s
Distance from Earth
100.9 pc (~329 ly)
Spectral Type
K1 III
Temperature
4909 K
Mass (Solar)
2.07 M☉
Radius (Solar)
8.56 R☉
Luminosity
1.58 log L☉
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
255.3201°, 60.6489°
Discovery Method
Radial Velocity
Discovery Year
2023
Source ID: HD 154391 b
HD 154391 b orbits HD 154391 and was reported in 2023 and was detected with the Radial Velocity method.
Published measurements list a mass of 2,892.24 Earth masses and an orbital period of 5,163 days.
Catalog data places the system at about 100.9 parsecs from Earth, a host star classified as K1 III, 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 154391