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Aveva una possibilità su centinaio di milioni, ma l'astronomo dilettante Víctor Buso è riuscito a fotografare una supernova, ovvero la violenta esplosione di una stella alla fine del suo ciclo vitale. Lo ha confermato mercoledì Alex Filippenko, della American University of Berkeley e coautore di uno studio sull’argomento: “Eravamo da tempo alla ricerca di un evento del genere - ha dichiarato - È come vincere la "lotteria cosmica".
Victor e il suo telescopio nella città di Rosario, a nord di Buenos Aires
Il 20 settembre 2016, l'argentino appassionato di stelle, decise di testare una nuova fotocamera sul suo telescopio, puntando l’obbiettivo verso la galassia NGC 613, a circa 80 milioni di anni luce dalla Terra nella costellazione del Scultore. Ed ecco il colpo di fortuna: un'enorme stella aveva appena trascorso le sue ultime ore in un'esplosione catastrofica.
Victor allora avvertì l'Associazione americana degli osservatori di stelle variabili, innescando una reazione a catena: astronomi e fisici di tutto il mondo puntarono il loro strumenti sul fenomeno, osservandone gli effetti per mesi.
ATS/Bleff
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