HD 152581 b
Orbiting HD 152581
HD 152581 b is an exoplanet orbiting the star HD 152581, discovered in 2011 using the Radial Velocity method.
Minimum Mass (M sin i)
594.02
Earth masses
Orbital Period
686.5
days
Distance
165.8
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
594.02
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Luhn et al. 2019
Orbital Period
686.500+4.800−4.800days
Semi-Major Axis
1.6600+0.3000−0.3000au
M sin(i) (Earth masses)
594.02+22.57−22.57
M sin(i) (Jupiter masses)
1.8690+0.0710−0.0710
Eccentricity
0.0400+0.0310−0.0310
Epoch of Periastron
2455040.00+120.00−120.00days(JD)
Argument of Periastron
181.0+66.0−66.0deg
Radial Velocity Semi-Amplitude
36.20+1.30−1.30m/s
Distance from Earth
165.8 pc (~541 ly)
Spectral Type
Unknown
Temperature
5027 K
Mass (Solar)
1.30 M☉
Radius (Solar)
5.14 R☉
Luminosity
Unknown
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
253.4316°, 11.9737°
Discovery Method
Radial Velocity
Discovery Year
2011
Source ID: HD 152581 b
HD 152581 b orbits HD 152581 and was reported in 2011 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 594.02 Earth masses (M sin i) and an orbital period of 686.5 days.
Catalog data places the system at about 165.8 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 152581