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2023
Discovered
5.5
Earth Masses
234
Temperature (K)
Discovery Information
Discovery MethodRadial Velocity
Discovery Year2,023
Discovery FacilityCalar Alto Observatory
Orbital Properties
Orbital Period36.116 days
Semi-Major Axis0.1417 AU
Eccentricity0.079
Physical Properties
Mass (Jupiter)0.0172 MJ
Mass (Earth)5.46 M⊕
Eq. Temperature234.4 K
Insolation Flux0.503 S⊕
Planetary Extremes
Where HN Lib b sits on the spectrum of all known exoplanets.
Mass5.5 M⊕
FeatherweightColossus
Temperature234 K
FrozenInferno
Year Length36.1 days
LightningGlacial
Star Distance0.142 AU
ScorchedFrozen exile
Orbit Comparison
Earth: 365.25 days (1 AU)HN Lib b: 36.1 Earth days (0.142 AU)
Host Star: HN Lib
Spectral TypeM4.0 V
Effective Temperature3,347 K
Mass0.291 M☉
Radius0.299 R☉
Size vs Sun3.34x smaller
Luminosity0.0101 L☉
Luminosity vs Sun99.0x dimmer
Metallicity [Fe/H]-0.18
Distance (pc)6.2444 pc
Distance (ly)20.4 light-years
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