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Mauro Messerotti, dell'Osservatorio di Trieste dell'Istituto Nazionale di Astrofisica, non ha dubbi: il Sole si sta avvicinando alla fase minima di attività e tra un paio di giorni potremmo aspettarci fenomeni in grado di provocare tempeste magnetiche sul nostro pianeta.
Stando all’esperto, sulla superfice della stella madre del sistema solare è comparsa una macchia gigantesca, delle dimensioni di Giove, da tempo tenuta sotto osservazione.
''E' una tipica macchia di fine ciclo ed è molto complessa dal punto di vista magnetico. Per il momento si trova vicino al bordo del disco del Sole, ma tra un paio di giorni arriverà al centro e punterà verso la Terra. A quel punto potremmo aspettarci fenomeni in grado di provocare tempeste magnetiche", sostiene il ricercatore dell'università di Trieste.
ATS/bin
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