HN Lib b
Orbiting HN Lib
HN Lib b is an exoplanet orbiting the star HN Lib, discovered in 2023 using the Radial Velocity method.
Minimum Mass (M sin i)
5.46
Earth masses
Orbital Period
36.1
days
Distance
6.2
parsecs
Equilibrium Temp
234
K
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
5.46
Radial-velocity minimum
Equilibrium Temperature
234 K
Parameter source: González-Álvarez et al. 2023
Orbital Period
36.116+0.027−0.029days
Semi-Major Axis
0.1417+0.0023−0.0023au
M sin(i) (Earth masses)
5.46+0.75−0.75
M sin(i) (Jupiter masses)
0.0172+0.0024−0.0024
Eccentricity
0.0790+0.0900−0.0550
Radial Velocity Semi-Amplitude
2.59+0.34−0.34m/s
Distance from Earth
6.2 pc (~20 ly)
Spectral Type
M4.0 V
Temperature
3347 K
Mass (Solar)
0.29 M☉
Radius (Solar)
0.30 R☉
Luminosity
-2.00 log L☉
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
218.5685°, -12.5170°
Discovery Method
Radial Velocity
Discovery Year
2023
Source ID: HN Lib b
HN Lib b orbits HN Lib and was reported in 2023 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 5.46 Earth masses (M sin i), an orbital period of 36.12 days, and an equilibrium temperature near 234 K.
Catalog data places the system at about 6.2 parsecs from Earth, a host star classified as M4.0 V, 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 HN Lib