CONFIRMED EXOPLANET · Sub-Neptune

K2-389 b

Orbits Host Star: K2-389 (Type G3) · Distance: 845.400 Light-Years (259.208 pc)

Planetary Radius

2.330 R⊕

Planetary Mass

6.040 M⊕

Surface Gravity

1.11 g / g⊕

Equilibrium Temp

932K (+659°C / +1218°F)

Orbital Period

8.583 days

Discovery Year

2022 (Transit)

Habitability Assessment

⚠️ Thermal Exclusions: High equilibrium temperature (932 K · +659°C / +1218°F) places this world well interior to the runaway greenhouse threshold.

Discovery Facility: K2.

Other Worlds in the K2-389 System (1)

K2-389 c

Sub-Neptune · 20.9d

NASA EXOPLANET ARCHIVE COMPOSITE PARAMETERS

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