HD 4208 b
Orbiting HD 4208
HD 4208 b is an exoplanet orbiting the star HD 4208, discovered in 2001 using the Radial Velocity method.
Minimum Mass (M sin i)
257.44
Earth masses
Orbital Period
833.0
days
Distance
34.2
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
257.44
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Barbato et al. 2018
Orbital Period
832.970+2.150−1.890days
Semi-Major Axis
1.6620+0.0150−0.0150au
M sin(i) (Earth masses)
257.44+4.45−4.77
M sin(i) (Jupiter masses)
0.8100+0.0140−0.0150
Eccentricity
0.0420+0.0390−0.0290
Epoch of Periastron
2456505.50+127.30−491.30days(BJD)
Argument of Periastron
217.6+57.6−67.5deg
Radial Velocity Semi-Amplitude
19.03+0.85−0.79m/s
Distance from Earth
34.2 pc (~112 ly)
Spectral Type
Unknown
Temperature
5717 K
Mass (Solar)
0.88 M☉
Radius (Solar)
0.85 R☉
Luminosity
Unknown
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
11.1126°, -26.5150°
Discovery Method
Radial Velocity
Discovery Year
2001
Source ID: HD 4208 b
HD 4208 b orbits HD 4208 and was reported in 2001 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 257.44 Earth masses (M sin i) and an orbital period of 832.97 days.
Catalog data places the system at about 34.2 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 4208