HD 40956 b
Orbiting HD 40956
HD 40956 b is an exoplanet orbiting the star HD 40956, discovered in 2017 using the Radial Velocity method.
Minimum Mass (M sin i)
858.14
Earth masses
Orbital Period
578.6
days
Distance
116.6
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
858.14
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Jeong et al. 2018
Orbital Period
578.600+3.300−3.300days
Semi-Major Axis
1.4000+0.1000−0.1000au
M sin(i) (Earth masses)
858.14+190.70−190.70
M sin(i) (Jupiter masses)
2.7000+0.6000−0.6000
Eccentricity
0.2400+0.0500−0.0500
Epoch of Periastron
2455341.88+11.07−11.07days(JD)
Argument of Periastron
338.6+7.7−7.7deg
Radial Velocity Semi-Amplitude
68.00+2.00−2.00m/s
Distance from Earth
116.6 pc (~380 ly)
Spectral Type
Unknown
Temperature
4869 K
Mass (Solar)
2.00 M☉
Radius (Solar)
8.56 R☉
Luminosity
1.66 log L☉
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
91.6628°, 63.4539°
Discovery Method
Radial Velocity
Discovery Year
2017
Source ID: HD 40956 b
HD 40956 b orbits HD 40956 and was reported in 2017 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 858.14 Earth masses (M sin i) and an orbital period of 578.6 days.
Catalog data places the system at about 116.6 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 40956