CONFIRMED EXOPLANET
·
Sub-Neptune
Kepler-257 c
Orbits Host Star: Kepler-257
· Distance: 2544.900 Light-Years (780.256 pc)
Planetary Radius
5.410 R⊕
Planetary Mass
25.200 M⊕
Surface Gravity
0.86 g / g⊕
Equilibrium Temp
881K (+608°C / +1126°F)
Orbital Period
6.581 days
Discovery Year
2014 (Transit)
Habitability Assessment
⚠️ Thermal Exclusions: High equilibrium temperature (881 K · +608°C / +1126°F) places this world well interior to the runaway greenhouse threshold.
Discovery Facility: Kepler.
Other Worlds in the Kepler-257 System (2)
NASA EXOPLANET ARCHIVE COMPOSITE PARAMETERS