HD 187123 b
Orbiting HD 187123
HD 187123 b is an exoplanet orbiting the star HD 187123, discovered in 1998 using the Radial Velocity method.
Minimum Mass (M sin i)
166.22
Earth masses
Orbital Period
3.1
days
Distance
46.0
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
166.22
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Wright et al. 2009
Orbital Period
3.097+0.000−0.000days
Semi-Major Axis
0.0426+0.0025−0.0025au
M sin(i) (Earth masses)
166.22+13.67−13.67
M sin(i) (Jupiter masses)
0.5230+0.0430−0.0430
Eccentricity
0.0103+0.0059−0.0059
Epoch of Periastron
2454343.12+0.31−0.31days
Argument of Periastron
25.0deg
Radial Velocity Semi-Amplitude
69.40+0.45−0.45m/s
Distance from Earth
46.0 pc (~150 ly)
Spectral Type
Unknown
Temperature
5790 K
Mass (Solar)
1.04 M☉
Radius (Solar)
1.15 R☉
Luminosity
0.13 log L☉
Planets in System
2
Stars in System
1
Coordinates (RA, Dec)
296.7429°, 34.4190°
Discovery Method
Radial Velocity
Discovery Year
1998
Source ID: HD 187123 b
HD 187123 b orbits HD 187123 and was reported in 1998 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 166.22 Earth masses (M sin i) and an orbital period of 3.1 days.
Catalog data places the system at about 46 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 187123More planets in this system