HD 128356 b
Orbiting HD 128356
HD 128356 b is an exoplanet orbiting the star HD 128356, discovered in 2016 using the Radial Velocity method.
Minimum Mass (M sin i)
282.87
Earth masses
Orbital Period
298.2
days
Distance
26.2
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
282.87
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Jenkins et al. 2017
Orbital Period
298.200+1.600−1.600days
Semi-Major Axis
0.8700+0.0300−0.0300au
M sin(i) (Earth masses)
282.87+22.25−22.25
M sin(i) (Jupiter masses)
0.8900+0.0700−0.0700
Eccentricity
0.5700+0.0800−0.0800
Argument of Periastron
84.2+4.6−4.6deg
Radial Velocity Semi-Amplitude
36.90+1.20−1.20m/s
Distance from Earth
26.2 pc (~85 ly)
Spectral Type
K3 V
Temperature
4875 K
Mass (Solar)
0.65 M☉
Radius (Solar)
0.85 R☉
Luminosity
-0.44 log L☉
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
219.2703°, -25.8032°
Discovery Method
Radial Velocity
Discovery Year
2016
Source ID: HD 128356 b
HD 128356 b orbits HD 128356 and was reported in 2016 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 282.87 Earth masses (M sin i) and an orbital period of 298.2 days.
Catalog data places the system at about 26.2 parsecs from Earth, a host star classified as K3 V, 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 128356