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CONFIRMED EXOPLANET · Terrestrial

TRAPPIST-1 b

Orbits Host Star: TRAPPIST-1 (Type M8.0 V) · Distance: 40.500 Light-Years (12.430 pc)
Planetary Radius
1.116 R⊕
Planetary Mass
1.374 M⊕
Surface Gravity
1.1 g / g⊕
Equilibrium Temp
398K (125°C)
Orbital Period
1.511 days
Discovery Year
2016 (Transit)

Habitability Assessment

⚠️ Thermal Exclusions: High equilibrium temperature (398 K) places this world well interior to the runaway greenhouse threshold.

Discovery Facility: La Silla Observatory.

Other Worlds in the TRAPPIST-1 System (6)

NASA EXOPLANET ARCHIVE COMPOSITE PARAMETERS
Inspect Raw NASA Archive Record ↗