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Raro fenomeno astronomico questa sera nei cieli sopra la Svizzera. La Luna infatti si presenterà dopo il tramonto sotto forma di una sottilissima falce e adagiata quasi orizzontalmente. E si tratta di un evento molto raro, visto che si ripete soltanto ogni 18 anni.
Stasera sarà dunque visibile solo lo 0,7% della superficie lunare, rendendo l’osservazione particolarmente affascinante, afferma l’esperto della Società astronomica svizzera Thomas Baer.
Lo spettacolo avrà inizio al tramonto. A Chiasso oggi il Sole tramonterà alle 18.35 e ad Airolo alle 18.36. Tuttavia, non bisogna aspettarsi che la sottile falce lunare appaia immediatamente nitida poiché al crepuscolo il cielo impiega del tempo prima di oscurarsi completamente.
È dunque consigliabile armarsi di pazienza e - per facilitare l’osservazione - utilizzare un binocolo. Il tramonto della Luna è previsto alle 19.28.
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Telegiornale 08.09.2025, 20:00
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