TRAPPIST-1 is a cool red dwarf star [c] with seven known exoplanets. It lies in the constellation Aquarius about 40.66 light-years away from Earth, and has a surface temperature of about 2,566 K (2,290 °C; 4,160 °F). Its radius is slightly larger than Jupiter and …

2024年10月28日 · You can fly through the TRAPPIST-1 planets and see an artist’s concept of the surfaces on your phone or with a desktop app. Compare each planet to Earth or Jupiter, compare the TRAPPIST-1 system to our solar system, and see how far the habitable zone extends.

2018年2月20日 · Forty light-years away, seven Earth-size planets closely orbit a faint star called TRAPPIST-1. We now know more about this system than any other beyond our own. Artist’s concept of TRAPPIST-1. The star we today call TRAPPIST-1 was first discovered in 1999 by astronomer John Gizis and colleagues.

2023年10月4日 · TRAPPIST-1 was the first system of transiting exoplanets to be discovered by the TRAPPIST project, back in 2016. At first, only three planets were identified, but...

2017年2月22日 · NASA’s planet-hunting Kepler space telescope also is studying the TRAPPIST-1 system, making measurements of the star’s minuscule changes in brightness due to transiting planets.

2017年2月21日 · Spitzer, an infrared telescope that trails Earth as it orbits the sun, was well-suited for studying TRAPPIST-1 because the star glows brightest in infrared light, whose wavelengths are longer than the eye can see. In the fall of 2016, Spitzer observed TRAPPIST-1 nearly continuously for 500 hours.

2021年1月22日 · The red dwarf star TRAPPIST-1 is home to the largest group of roughly Earth-size planets ever found in a single stellar system. Located about 40 light-years away, these seven rocky siblings provide an example of the tremendous variety of …

TRAPPIST-1 Multimedia Go To Galleries Go To Galleries Keep Exploring Discover More Topics From NASA February 2025 Wildfires and Climate Change Amendment 111: F.5 FINESST SMD’s Graduate Student Research opportunity: Updated Text and Charts and Reviewers Sought The Moon’s Atmosphere ...

2024年12月16日 · In stark contrast with a paper released last year that determined the exoplanet was likely to be bare and barren, new data obtained using JWST suggest that TRAPPIST-1b is either roiling with geological activity, or possibly shrouded in a thick atmosphere rich in …

About TRAPPIST-1. TRAPPIST-1 is a planetary system, located 12 parsecs away from the Solar system (39 light years), near the ecliptic, within the constellation of Aquarius. Around a star which is 12 times less massive than the Sun and only slightly larger than Jupiter, there are at least seven planets in orbit.