logo Museo Galileo - Institute and Museum of the History of Science
Robert Dudley e Charles Whitwell, Calcolatore lunare
Robert Dudley e Charles Whitwell, Lunar calculator (Nautical circle)

Late 16th cent.
Brass; diameter 73 cm
Florence, Istituto e Museo di Storia della Scienza, inv. 1116

Both faces are engraved with information for calculating the lunar phases and determining longitude at sea. Provenance: Robert Dudley bequest.