HD 149026 b
Orbiting HD 149026
HD 149026 b is an exoplanet orbiting the star HD 149026, discovered in 2005 using the Radial Velocity method. It is a Neptune-sized world.
Radius
8.29
Earth radii
Mass
120.78
Earth masses
Orbital Period
2.9
days
Distance
75.9
parsecs
Radius (Earth radii)
8.29
Mass (Earth masses)
120.78
Measured
Equilibrium Temperature
Unknown
Parameter source: Stassun et al. 2017
Orbital Period
2.876+0.000−0.000days
Planet Mass (Earth masses)
120.78+19.07−19.07
Planet Mass (Jupiter masses)
0.3800+0.0600−0.0600
Eccentricity
0.0000
Radial Velocity Semi-Amplitude
43.30+1.20−1.20m/s
Distance from Earth
75.9 pc (~247 ly)
Spectral Type
Unknown
Temperature
6179 K
Mass (Solar)
1.42 M☉
Radius (Solar)
1.41 R☉
Luminosity
Unknown
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
247.6230°, 38.3475°
Discovery Method
Radial Velocity
Discovery Year
2005
Source ID: HD 149026 b
HD 149026 b orbits HD 149026 and was reported in 2005 and was detected with the Radial Velocity method.
Published measurements list a radius of 8.29 Earth radii, a mass of 120.78 Earth masses, and an orbital period of 2.88 days.
Catalog data places the system at about 75.9 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 149026