CONFIRMED EXOPLANET
·
Sub-Neptune
K2-138 d
Orbits Host Star: K2-138
(Type G8 V)
· Distance: 660.700 Light-Years (202.585 pc)
Planetary Radius
2.390 R⊕
Planetary Mass
7.920 M⊕
Surface Gravity
1.39 g / g⊕
Equilibrium Temp
888K (+615°C / +1139°F)
Orbital Period
5.405 days
Discovery Year
2017 (Transit)
Habitability Assessment
⚠️ Thermal Exclusions: High equilibrium temperature (888 K · +615°C / +1139°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