Il telescopio spaziale Cheops ha scoperto un esopianeta unico nel suo genere. Si tratta di un pianeta non appartenente al sistema solare, di una grandezza quasi 3 volte superiore a quella della Terra e appartenente alla costellazione di Lupus.
È la prima volta che un esopianeta con un periodo orbitale superiore ai 100 giorni è stato visto transitare davanti a una stella visibile a occhio nudo dalla Terra. L’enorme distanza tra il pianeta e la sua stella (Nu2 Lupi), analoga a quella tra il Sole e Venere, lo rende infatti minuscolo da chi lo scruta dalla Terra.
Inizia l'esplorazione dei pianeti extrasolari
Telegiornale 18.12.2019, 13:30
Il team internazionale di ricerca, sotto la guida delle università di Berna e Ginevra, è riuscito a intercettare il corpo celeste per pura coincidenza durante lo studio di due altri pianeti molto simili distanti 50 anni luce dalla Terra.
Nella ricerca, pubblicata sulla rivista Nature Astronomy, gli scienziati sono stati anche in grado di determinare la composizione del pianeta che sarebbe molto ricco d’acqua, anche se non abitabile.
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