HD 133131 A b
Orbiting HD 133131 A
HD 133131 A b is an exoplanet orbiting the star HD 133131 A, discovered in 2016 using the Radial Velocity method.
Minimum Mass (M sin i)
451.32
Earth masses
Orbital Period
649.0
days
Distance
51.5
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
451.32
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Teske et al. 2016
Orbital Period
649.000+3.000−3.000days
Semi-Major Axis
1.4400+0.0050−0.0050au
M sin(i) (Earth masses)
451.32+12.71−12.71
M sin(i) (Jupiter masses)
1.4200+0.0400−0.0400
Eccentricity
0.3300+0.0300−0.0300
Epoch of Periastron
2452327.00+23.00−23.00days(JD)
Argument of Periastron
16.0+4.7−4.7deg
Radial Velocity Semi-Amplitude
36.52+0.93−0.93m/s
Distance from Earth
51.5 pc (~168 ly)
Spectral Type
G2 V
Temperature
5799 K
Mass (Solar)
0.95 M☉
Radius (Solar)
Unknown
Luminosity
Unknown
Planets in System
3
Stars in System
2
Coordinates (RA, Dec)
225.8985°, -27.8431°
Discovery Method
Radial Velocity
Discovery Year
2016
Source ID: HD 133131 A b
HD 133131 A b orbits HD 133131 A and was reported in 2016 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 451.32 Earth masses (M sin i) and an orbital period of 649 days.
Catalog data places the system at about 51.5 parsecs from Earth, a host star classified as G2 V, and 3 known planets in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open HD 133131 AMore planets in this system