HD 180617 b
Orbiting HD 180617
HD 180617 b is an exoplanet orbiting the star HD 180617, discovered in 2018 using the Radial Velocity method.
Minimum Mass (M sin i)
12.21
Earth masses
Orbital Period
105.9
days
Distance
5.9
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
12.21
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Burt et al. 2021
Orbital Period
105.911+0.109−0.109days
Semi-Major Axis
0.3430+0.0040−0.0040au
M sin(i) (Earth masses)
12.21+1.05−1.05
M sin(i) (Jupiter masses)
0.0384+0.0033−0.0033
Eccentricity
0.1010+0.0530−0.0530
Argument of Periastron
257.4+51.3−51.3deg
Radial Velocity Semi-Amplitude
2.70+0.22−0.22m/s
Distance from Earth
5.9 pc (~19 ly)
Spectral Type
Unknown
Temperature
3534 K
Mass (Solar)
0.48 M☉
Radius (Solar)
0.48 R☉
Luminosity
-1.49 log L☉
Planets in System
1
Stars in System
2
Coordinates (RA, Dec)
289.2277°, 5.1632°
Discovery Method
Radial Velocity
Discovery Year
2018
Source ID: HD 180617 b
HD 180617 b orbits HD 180617 and was reported in 2018 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 12.21 Earth masses (M sin i) and an orbital period of 105.91 days.
Catalog data places the system at about 5.9 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 180617