Alle 0.32 di martedi mattina inizia l’estate dal profilo astronomico. Il Sole raggiunge la sua massima declinazione settentrionale nel cielo. E’ il giorno più lungo dell’anno. Da mercoledi i giorni tornano a accorciarsi, fino al solstizio d’inverno, il 21 dicembre.
L’avvio della bella stagione coincide quest’anno con la fase di luna piena, ciò che non accadeva dal 1967.
Migliaia di persone si radunano, come ogni anno il 21 giugno, a Stonehenge, il sito neolitico nel sud dell’Inghilterra (associato alla leggenda di Re Artù) dove, fra i megaliti, attendono l’alba per osservare il sorgere della nostra stella.
RedMM/mas
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