CONFIRMED EXOPLANET
·
Terrestrial
K2-257 b
Orbits Host Star: K2-257
· Distance: 208.800 Light-Years (64.007 pc)
Planetary Radius
0.830 R⊕
Planetary Mass
0.498 M⊕
Surface Gravity
0.72 g / g⊕
Equilibrium Temp
789K (+516°C / +961°F)
Orbital Period
1.606 days
Discovery Year
2018 (Transit)
Habitability Assessment
⚠️ Thermal Exclusions: High equilibrium temperature (789 K · +516°C / +961°F) places this world well interior to the runaway greenhouse threshold.
Discovery Facility: K2.
NASA EXOPLANET ARCHIVE COMPOSITE PARAMETERS