CONFIRMED EXOPLANET
·
Sub-Neptune
Kepler-221 d
Orbits Host Star: Kepler-221
· Distance: 1256.500 Light-Years (385.231 pc)
Planetary Radius
2.730 R⊕
Planetary Mass
3.610 M⊕
Surface Gravity
0.48 g / g⊕
Equilibrium Temp
712K (+439°C / +822°F)
Orbital Period
10.042 days
Discovery Year
2014 (Transit)
Habitability Assessment
⚠️ Thermal Exclusions: High equilibrium temperature (712 K · +439°C / +822°F) places this world well interior to the runaway greenhouse threshold.
Discovery Facility: Kepler.
Other Worlds in the Kepler-221 System (3)
NASA EXOPLANET ARCHIVE COMPOSITE PARAMETERS