HD 4203 b
Orbiting HD 4203
HD 4203 b is an exoplanet orbiting the star HD 4203, discovered in 2001 using the Radial Velocity method.
Minimum Mass (M sin i)
708.76
Earth masses
Orbital Period
431.9
days
Distance
81.4
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
708.76
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Stassun et al. 2017
Orbital Period
431.880+0.850−0.850days
Semi-Major Axis
1.1700+0.0200−0.0200au
M sin(i) (Earth masses)
708.76+66.74−66.74
M sin(i) (Jupiter masses)
2.2300+0.2100−0.2100
Eccentricity
0.5200+0.0300−0.0300
Radial Velocity Semi-Amplitude
60.30+2.20−2.20m/s
Distance from Earth
81.4 pc (~265 ly)
Spectral Type
Unknown
Temperature
5596 K
Mass (Solar)
1.25 M☉
Radius (Solar)
1.42 R☉
Luminosity
Unknown
Planets in System
2
Stars in System
1
Coordinates (RA, Dec)
11.1722°, 20.4484°
Discovery Method
Radial Velocity
Discovery Year
2001
Source ID: HD 4203 b
HD 4203 b orbits HD 4203 and was reported in 2001 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 708.76 Earth masses (M sin i) and an orbital period of 431.88 days.
Catalog data places the system at about 81.4 parsecs from Earth and 2 known planets in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open HD 4203More planets in this system