HD 148427 b
Orbiting HD 148427
HD 148427 b is an exoplanet orbiting the star HD 148427, discovered in 2009 using the Radial Velocity method.
Mass
381.39
Earth masses
Orbital Period
331.9
days
Distance
71.3
parsecs
Radius (Earth radii)
Unknown
Mass (Earth masses)
381.39
Measured
Equilibrium Temperature
Unknown
Parameter source: Piccinini et al. 2026
Orbital Period
331.900+1.900−2.200days
Semi-Major Axis
1.1100+0.0600−0.0600au
Planet Mass (Earth masses)
381.39+63.57−95.35
Planet Mass (Jupiter masses)
1.2000+0.2000−0.3000
Eccentricity
0.1200+0.0900−0.0800
Epoch of Periastron
2457969.00+83.00−85.00days(BJD)
Argument of Periastron
267.2+40.3−68.4deg
Radial Velocity Semi-Amplitude
25.10+2.40−2.50m/s
Distance from Earth
71.3 pc (~233 ly)
Spectral Type
K0 III- IV
Temperature
5025 K
Mass (Solar)
1.64 M☉
Radius (Solar)
3.86 R☉
Luminosity
Unknown
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
247.1171°, -13.3996°
Discovery Method
Radial Velocity
Discovery Year
2009
Source ID: HD 148427 b
HD 148427 b orbits HD 148427 and was reported in 2009 and was detected with the Radial Velocity method.
Published measurements list a mass of 381.39 Earth masses and an orbital period of 331.9 days.
Catalog data places the system at about 71.3 parsecs from Earth, a host star classified as K0 III- IV, 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 148427