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Among the most evocative events in June in Florence, one of the most eagerly awaited events by Florentines and tourists returns to the Cathedral of Santa Maria del Fiore: the passage of the sun's ray through the gnomon of the Florence Cathedral, an extraordinary astronomical phenomenon that attracts history, art and science enthusiasts every year.
The event dedicated to the gnomon of Florence Cathedral 2026 will be open to the public on 19 June 2026, from 12:30 pm to 1:30 pm. Visitors will be able to observe the phenomenon from the Cappella della Croce, located to the left of the High Altar of the Cathedral of Florence, with access from the Porta dei Canonici, on the south side of the Duomo.
The passage of the sun's ray through the gnomon of the Cathedral of Santa Maria del Fiore is one of the most fascinating experiences among Florence's cultural and scientific events. This ancient astronomical instrument, designed in the Renaissance, allows you to witness a unique spectacle that combines art, architecture and observation of the sky.
Participation in the event is free, but booking is mandatory, until all available places are taken, through the dedicated online system.
Participation in the event is free, but booking is mandatory, until all available places are taken, through the dedicated online system.
