HD 18742 b
Orbiting HD 18742
HD 18742 b is an exoplanet orbiting the star HD 18742, discovered in 2011 using the Radial Velocity method.
Minimum Mass (M sin i)
1080.62
Earth masses
Orbital Period
766.0
days
Distance
162.7
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
1080.62
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Luhn et al. 2019
Orbital Period
766.000+25.000−25.000days
Semi-Major Axis
1.8200+0.1400−0.1400au
M sin(i) (Earth masses)
1080.62+381.40−381.40
M sin(i) (Jupiter masses)
3.4000+1.2000−1.2000
Eccentricity
0.0400+0.0350−0.0350
Epoch of Periastron
2455280.00+140.00−140.00days(JD)
Argument of Periastron
190.0+74.0−74.0deg
Radial Velocity Semi-Amplitude
61.00+22.00−22.00m/s
Distance from Earth
162.7 pc (~531 ly)
Spectral Type
Unknown
Temperature
4940 K
Mass (Solar)
1.36 M☉
Radius (Solar)
5.13 R☉
Luminosity
Unknown
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
45.0443°, -20.8027°
Discovery Method
Radial Velocity
Discovery Year
2011
Source ID: HD 18742 b
HD 18742 b orbits HD 18742 and was reported in 2011 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 1,080.62 Earth masses (M sin i) and an orbital period of 766 days.
Catalog data places the system at about 162.7 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 18742