CONFIRMED EXOPLANET
·
Super-Earth
Kepler-399 d
Orbits Host Star: Kepler-399
· Distance: 2415.300 Light-Years (740.537 pc)
Planetary Radius
1.890 R⊕
Planetary Mass
4.230 M⊕
Surface Gravity
1.18 g / g⊕
Equilibrium Temp
486K (+213°C / +415°F)
Orbital Period
58.035 days
Discovery Year
2014 (Transit)
Habitability Assessment
⚠️ Thermal Exclusions: High equilibrium temperature (486 K · +213°C / +415°F) places this world well interior to the runaway greenhouse threshold.
Discovery Facility: Kepler.
Other Worlds in the Kepler-399 System (2)
NASA EXOPLANET ARCHIVE COMPOSITE PARAMETERS