Planets in TRAPPIST-1 system, illustration

Planets in TRAPPIST-1 system, illustration

C034/4990

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This image may not be used by or to promote the arms, nuclear power or tobacco industries or any religious organisation, or in any discriminatory way, or to imply the endorsement by ESO of any product, service or activity.

Caption

Planets in TRAPPIST-1 system. Illustration of a view from low orbit of one of the seven planets of the ultra-cool dwarf star TRAPPIST-1, with one of the inner planets seen in transit across the disc of its parent star (upper centre). The other planets are also shown. TRAPPIST-1 is Jupiter-sized, and its planets are Earth-sized with several in a habitable zone for life. Three planets were discovered in 2015, with four more discovered in 2017, with a total of three planets in the habitable zone. This system has been studied using NASA's Spitzer Space Telescope (SST) and the ground-based TRAPPIST (Transiting Planets and Planetesimals Small Telescope). TRAPPIST-1 is 39 light years from Earth, in the constellation of Aquarius. This image was published in 2017.

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