Azimuth Circle

This circle consists of two semi-circular pieces joined to the centre by four radial splokes. The prism and dark shades are mounted on one of these and the sighting wire and reflector on the other. A special fitting is carried on the centre for the accommodation of a reflecting instrument for use in the adjustment of compasses. This fitting has three slots so as to be capable of being adjusted azimuthally.

Object Details

ID: ACO0475
Type: Azimuth Circle
Display location: Not on display
Creator: Unknown
Date made: 20C
Credit: National Maritime Museum, Greenwich, London, Admiralty Compass Observatory
Measurements: Overall: 70 mm x 170 mm x 150 mm x 178 mm
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