Astronomical compendium lunar volvelle

Lunar volvelle for the astronomical compendium for latitude 51° North. Beneath this, a lunar volvelle consisting of two brass discs is set into the remaining body of the instrument.

Object Details

ID: AST0502.4
Type: Astronomical compendium lunar volvelle
Display location: Not on display
Creator: Unknown
Date made: 17th century
Credit: National Maritime Museum, Greenwich, London, Georges Bernard Collection
Measurements: Overall: 39 mm; Diameter: 41 mm
Parts: Astronomical compendium