TRAPPIST-1d
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TRAPPIST-1d is a small exoplanet, which orbits on the inner edge of the habitable zone of the ultra-cool red dwarf star TRAPPIST-1, located 40.7 light-years away from Earth in the constellation of Aqu
Artist's impression of TRAPPIST-1d (August 2025)
Artist's impression of the TRAPPIST-1 planetary system.
PDS 70
Distant galaxy GN z 11 in GOODS N image by HST
TRAPPIST-1
Videos
TRAPPIST-1 is a red dwarf star with seven known exoplanets. It lies in the constellation Aquarius approximately 40.66 light-years away from Earth. An ultra-cool dwarf, it has a surface temperature of
TRAPPIST-1d
…is a small exoplanet (about 40 percent the mass of the Earth), which orbits on the inner edge of the habitable zone of the ultra-cool red dwarf star TRAPPIST-1, located 40.7 light-years (12.5 parsecs) away from Earth in the constellation of Aquarius. The exoplanet was found by using the transit method. The…
True-colour illustration of the Sun (left) next to TRAPPIST-1 (right). TRAPPIST-1 is darker, redder and smaller than the Sun.
Comparison of the orbits of the TRAPPIST-1 planets with the Solar System and Jupiter's moons
Relative sizes, densities and illumination of the TRAPPIST-1 system compared to the inner planets of the Solar System
Habitable zones of TRAPPIST-1 and the Solar System. The displayed planetary surfaces are speculative.