TRAPPIST-1

Rare card · No. 58318

TRAPPIST-1 (also known as 2MASS J23062928−0502285 or SPECULOOS-1) is a red dwarf star with seven known exoplanets. It lies in the constellation Aquarius approximately 40.66 light-years (12.47 pc) away from Earth. An ultra-cool dwarf, it has a surface temperature of about 2,566 K (2,290 °C; 4,160 °F). Its radius is slightly larger than Jupiter's and it has a mass of about 9% of the Sun. It is estimated to be 7.6 billion years old, making it older than the Solar System. The discovery of the star was first published in 2000. Observations in 2016 from TRAPPIST–South (Transiting Planets and Planetesimals Small Telescope project) at La Silla Observatory in Chile and other telescopes led to the discovery of two terrestrial planets in orbit around TRAPPIST-1. In 2017, further analysis of the original observations identified five more terrestrial planets. The seven planets take between 1.5 and 19 days to orbit the star in circular orbits. They are all likely tidally locked to TRAPPIST-1, and it...

Read on Wikipedia · Image Processing and color compositing by Nrco0e; original images by Sloan Digital Sky Survey, CC BY 4.0