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TRAPPIST-1b
Extrasolar planet
TRAPPIST-1b is a terrestrial, Earth-sized exoplanet orbiting around 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 planet was detected using the transit method, where a planet dims the host star's light as it passes in front of it.
From Wikipedia
TRAPPIST-1b is a terrestrial, Earth-sized exoplanet orbiting around 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 planet was detected using the transit method, where a planet dims the host star's light as it passes in front of it. It was first announced on May 2, 2016, and later studies were able to refine its physical parameters. The planet is about 37% more massive than Earth and about 39% larger in volume; thus its density is very similar. It is the innermost of seven planets orbiting TRAPPIST-1, all of which are terrestrial, but is too close to its star to be in the habitable zone. Observations by the James Webb Space Telescope announced between 2023 and 2024 suggest that it is either airless or has a hazy CO2-rich atmosphere. Its albedo is very low, making it dark in color.
Text: Wikipédia, CC BY-SA 4.0. · Image: NASA, ESA, CSA, J. Olmsted (STScI), T. P. Greene (NASA Ames)... (CC BY 4.0) ·
