HD 161178 b
Orbiting HD 161178
HD 161178 b is an exoplanet orbiting the star HD 161178, discovered in 2021 using the Radial Velocity method.
Minimum Mass (M sin i)
181.16
Earth masses
Orbital Period
279.3
days
Distance
107.2
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
181.16
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Teng et al. 2022
Orbital Period
279.300+1.000−0.800days
Semi-Major Axis
0.8500+0.0500−0.0700au
M sin(i) (Earth masses)
181.16+6.36−50.85
M sin(i) (Jupiter masses)
0.5700+0.0200−0.1600
Eccentricity
0.0440+0.1320−0.0190
Epoch of Periastron
2455296.60+218.40−12.00days(JD)
Argument of Periastron
300.0+180.0−70.0deg
Radial Velocity Semi-Amplitude
17.00+1.60−2.30m/s
Distance from Earth
107.2 pc (~350 ly)
Spectral Type
G9 III
Temperature
4786 K
Mass (Solar)
1.06 M☉
Radius (Solar)
10.95 R☉
Luminosity
1.75 log L☉
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
264.2874°, 72.4559°
Discovery Method
Radial Velocity
Discovery Year
2021
Source ID: HD 161178 b
HD 161178 b orbits HD 161178 and was reported in 2021 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 181.16 Earth masses (M sin i) and an orbital period of 279.3 days.
Catalog data places the system at about 107.2 parsecs from Earth, a host star classified as G9 III, 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 161178