CONFIRMED EXOPLANET
·
Sub-Earth
★ TEMPERATE HABITABLE ZONE
TRAPPIST-1 d
Orbits Host Star: TRAPPIST-1
(Type M8.0 V)
· Distance: 40.500 Light-Years (12.430 pc)
Planetary Radius
0.788 R⊕
Planetary Mass
0.388 M⊕
Surface Gravity
0.62 g / g⊕
Equilibrium Temp
286K (13°C)
Orbital Period
4.049 days
Discovery Year
2016 (Transit)
Habitability Assessment
✓ Classified as a Temperate Habitable Zone Candidate.
With an estimated equilibrium temperature of 286 K (13°C) and a radius of 0.788 R⊕, TRAPPIST-1 d falls within the conservative empirical boundary where a solid rocky surface could sustain liquid surface water under suitable atmospheric greenhouse conditions.
Discovery Facility: La Silla Observatory.
Other Worlds in the TRAPPIST-1 System (6)
NASA EXOPLANET ARCHIVE COMPOSITE PARAMETERS