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Lunedì 21 agosto si verificherà un’eclisse totale di Sole che attraverserà gli Stati Uniti dall’Oregon alla Carolina del Sud. E’ la prima che tocca il paese dal febbraio 1979.
L’appuntamento si annuncia spettacolare nella stretta fascia, larga 200 chilometri, in cui la Luna occulterà completamente il disco solare. In pochi secondi si passerà dal giorno alla notte. L’eclisse nella sua totalità durerà 2 minuti e 40 secondi.
Da mesi gli alberghi di molte località toccate sono completi. Decine di migliaia di persone, anche da altri continenti, si spostano infatti per seguire lo spettacolare fenomeno astronomico. In Europa molti ricordano l’eclisse totale dell’11 agosto 1999. Il prossimo appuntamento è per il 12 agosto 2026 dove la totalità interesserà Islanda, Portogallo e Spagna.
La prossima eclisse totale di Sole visibile in Svizzera si verificherà il 3 settembre 2081. L’ultima è stata il 22 maggio 1724. Teoricamente una persona che non si sposta vede un’eclisse totale ogni 350-400 anni.
RedMM/mas
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