CONFIRMED EXOPLANET
·
Sub-Neptune
K2-138 g
Orbits Host Star: K2-138
(Type G8 V)
· Distance: 660.700 Light-Years (202.585 pc)
Planetary Radius
3.013 R⊕
Planetary Mass
4.320 M⊕
Surface Gravity
0.48 g / g⊕
Equilibrium Temp
445K (+172°C / +342°F)
Orbital Period
41.968 days
Discovery Year
2021 (Transit)
Habitability Assessment
⚠️ Thermal Exclusions: High equilibrium temperature (445 K · +172°C / +342°F) places this world well interior to the runaway greenhouse threshold.
Discovery Facility: K2.
Other Worlds in the K2-138 System (5)
NASA EXOPLANET ARCHIVE COMPOSITE PARAMETERS