Ambrosiana
Restoration works for the recovery of the historic balconies of the Biblioteca Ambrosiana
Recovery of the functionality of the balconies of the Sala Federiciana, Borromeo and della Rosa through the installation of lifelines
An astrolabe is an ancient instrument used to locate the position of celestial bodies (sun, moon and stars): it represents the celestial vault projected on a plane. Astrolabes were used until the 17th century, when more precise astronomical instruments were introduced. However, they were included in scientific collections as a sign of cultural refinement. This astrolabe, dating from 1500, could determine the position of thirty eight stars.