CONFIRMED EXOPLANET
·
Sub-Neptune
★ TEMPERATE HABITABLE ZONE
HN Lib b
Orbits Host Star: HN Lib
(Type M4.0 V)
· Distance: 20.400 Light-Years (6.244 pc)
Planetary Radius
2.200 R⊕
Planetary Mass
5.460 M⊕
Surface Gravity
1.13 g / g⊕
Equilibrium Temp
234K (-39°C / -38°F)
Orbital Period
36.116 days
Discovery Year
2023 (Radial Velocity)
Habitability Assessment
✓ Classified as a Temperate Habitable Zone Candidate.
With an estimated equilibrium temperature of 234 K (-39°C / -38°F) and a radius of 2.200 R⊕, HN Lib b falls within the conservative empirical boundary where a solid rocky surface could sustain liquid surface water under suitable atmospheric greenhouse conditions.
Discovery Facility: Calar Alto Observatory.
NASA EXOPLANET ARCHIVE COMPOSITE PARAMETERS