A first planet, LP 890-9b (or TOI-4306b), the innermost in the system, was initially identified by NASA's Transiting Exoplanet Survey Satellite (TESS), a space mission dedicated to the search for exoplanets orbiting nearby stars. This planet, which is about 30% larger than the Earth, completes an orbit around the star in just 2.7 days. The ULiège researchers used their ground-based SPECULOOS (Search for habitable Planets EClipsing ULtra-cOOl Stars) telescopes to confirm and characterise this planet, and also to probe the system in depth for other planets that might have been 'missed' by TESS.
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