HD 149143 b
Orbiting HD 149143
HD 149143 b is an exoplanet orbiting the star HD 149143, discovered in 2005 using the Radial Velocity method.
Minimum Mass (M sin i)
422.71
Earth masses
Orbital Period
4.1
days
Distance
73.3
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
422.71
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Ment et al. 2018
Orbital Period
4.072+0.000−0.000days
Semi-Major Axis
0.0530+0.0029−0.0029au
M sin(i) (Earth masses)
422.71+47.67−47.67
M sin(i) (Jupiter masses)
1.3300+0.1500−0.1500
Eccentricity
0.0167+0.0040−0.0040
Epoch of Periastron
2463199.12+0.20−0.20days(JD)
Argument of Periastron
217.0+17.0−17.0deg
Radial Velocity Semi-Amplitude
150.30+0.65−0.65m/s
Distance from Earth
73.3 pc (~239 ly)
Spectral Type
G0
Temperature
5856 K
Mass (Solar)
1.20 M☉
Radius (Solar)
1.44 R☉
Luminosity
0.35 log L☉
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
248.2127°, 2.0845°
Discovery Method
Radial Velocity
Discovery Year
2005
Source ID: HD 149143 b
HD 149143 b orbits HD 149143 and was reported in 2005 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 422.71 Earth masses (M sin i) and an orbital period of 4.07 days.
Catalog data places the system at about 73.3 parsecs from Earth, a host star classified as G0, 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 149143