What Was The Number Of Faces On Giovanni Dondi Dell'orologio's Astrarium? File

Modern reconstructions (e.g., by the Museo della Scienza in Florence or by clockmaker Francis Maddison) have confirmed the 107 faces count from the diagrams. However, some modern replicas simplify the mechanism, reducing the number of functional hands to about 20–30 for practicality.

The Astrarium had 107 faces (i.e., separate moving pointers). Modern reconstructions (e

The figure of 107 is historically significant for two reasons: Modern reconstructions (e.g.

Here is the detailed breakdown of that figure. some modern replicas simplify the mechanism

The top level of the Astrarium was a heptagonal (seven-sided) brass framework that housed seven distinct dials. Each dial was dedicated to one of the "seven stars" or celestial bodies known in the medieval Ptolemaic system: