HD 118203 b
Orbiting HD 118203
HD 118203 b is an exoplanet orbiting the star HD 118203, discovered in 2005 using the Radial Velocity method. It is a Jupiter-sized world.
Radius
12.78
Earth radii
Mass
680.15
Earth masses
Orbital Period
6.1
days
Distance
92.3
parsecs
Equilibrium Temp
1361
K
Radius (Earth radii)
12.78
Mass (Earth masses)
680.15
Measured
Equilibrium Temperature
1361 K
Parameter source: Zhang et al. 2024
Orbital Period
6.135+0.000−0.000days
Semi-Major Axis
0.0713+0.0020−0.0020au
Planet Mass (Earth masses)
680.15+38.14−38.14
Planet Mass (Jupiter masses)
2.1400+0.1200−0.1200
Eccentricity
0.3136+0.0075−0.0075
Argument of Periastron
155.5+1.9−2.0deg
Radial Velocity Semi-Amplitude
216.90+3.10−3.10m/s
Distance from Earth
92.3 pc (~301 ly)
Spectral Type
Unknown
Temperature
5742 K
Mass (Solar)
1.27 M☉
Radius (Solar)
2.04 R☉
Luminosity
Unknown
Planets in System
2
Stars in System
1
Coordinates (RA, Dec)
203.5100°, 53.7282°
Discovery Method
Radial Velocity
Discovery Year
2005
Source ID: HD 118203 b
HD 118203 b orbits HD 118203 and was reported in 2005 and was detected with the Radial Velocity method.
Published measurements list a radius of 12.78 Earth radii, a mass of 680.15 Earth masses, an orbital period of 6.13 days, and an equilibrium temperature near 1,361 K.
Catalog data places the system at about 92.3 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 118203More planets in this system