Ambrosiana
READING ROOM CLOSURE FROM SEPTEMBER 24 TO 29
Reading room closed from September 24 to 29 included
24/09/2025-29/09/2025
Tradition has it that this armillary sphere, which is mounted on an elegantly engraved lobated support, originally belonged to Saint Charles Borromeo. It can be used to study the movement of the moon according not to the ancient Ptolemaic view but to the new Copernican system.