HD 178911 B b
Orbiting HD 178911 B
HD 178911 B b is an exoplanet orbiting the star HD 178911 B, discovered in 2001 using the Radial Velocity method.
Minimum Mass (M sin i)
2552.17
Earth masses
Orbital Period
71.5
days
Distance
41.0
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
2552.17
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Stassun et al. 2017
Orbital Period
71.484+0.020−0.020days
Semi-Major Axis
0.3400+0.0100−0.0100au
M sin(i) (Earth masses)
2552.17+797.75−797.75
M sin(i) (Jupiter masses)
8.0300+2.5100−2.5100
Eccentricity
0.1100+0.0000−0.0000
Radial Velocity Semi-Amplitude
343.30+1.00−1.00m/s
Distance from Earth
41.0 pc (~134 ly)
Spectral Type
Unknown
Temperature
5588 K
Mass (Solar)
1.24 M☉
Radius (Solar)
1.08 R☉
Luminosity
Unknown
Planets in System
1
Stars in System
3
Coordinates (RA, Dec)
287.2632°, 34.6007°
Discovery Method
Radial Velocity
Discovery Year
2001
Source ID: HD 178911 B b
HD 178911 B b orbits HD 178911 B and was reported in 2001 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 2,552.17 Earth masses (M sin i) and an orbital period of 71.48 days.
Catalog data places the system at about 41 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 178911 B