HD 208487 b
Orbiting HD 208487
HD 208487 b is an exoplanet orbiting the star HD 208487, discovered in 2004 using the Radial Velocity method.
Minimum Mass (M sin i)
146.20
Earth masses
Orbital Period
129.4
days
Distance
45.1
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
146.20
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Rubenstein et al. 2025
Orbital Period
129.360+0.020−0.020days
Semi-Major Axis
0.5300+0.0000−0.0000au
M sin(i) (Earth masses)
146.20+3.18−0.00
M sin(i) (Jupiter masses)
0.4600+0.0100−0.0000
Eccentricity
0.3700+0.0100−0.0100
Argument of Periastron
63.0+0.6−0.6deg
Radial Velocity Semi-Amplitude
18.28+0.29−0.40m/s
Distance from Earth
45.1 pc (~147 ly)
Spectral Type
G2 V
Temperature
6134 K
Mass (Solar)
1.15 M☉
Radius (Solar)
1.16 R☉
Luminosity
0.23 log L☉
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
329.3332°, -37.7641°
Discovery Method
Radial Velocity
Discovery Year
2004
Source ID: HD 208487 b
HD 208487 b orbits HD 208487 and was reported in 2004 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 146.2 Earth masses (M sin i) and an orbital period of 129.36 days.
Catalog data places the system at about 45.1 parsecs from Earth, a host star classified as G2 V, 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 208487