Analemmatic sundial

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Analemmatic sundials have two gnomons, a vertical one for a calendrical scale and an inclining one for the normal horizontal hour scale. This brass example was made in 1801, probably by John Engelbrecht of Brunswick in Germany.

The dial has three levelling screws and is inscribed on the edge 'FECIT IOAN ENGLEBRECT BERAUNENSIS/ 1801'.

This type of dial is not fitted with a compass for orientation, but combines two forms of dial, the vertical one being set in accordance with the season. The instrument is then turned until both shadows indicate the same hour.

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• Online ID: 000-100-102-699-C
• Image Rights Holder: National Museums Scotland
• Project: National Museums Scotland
  Project description   View all records in project
• Ref: National Museums Scotland  T.1962.12
• Date: 1801
  
• Material: Silvered brass. Inscription: FECIT IOAN ENGLEBRECT BERAUNSIS, 1801
  Sundial, alemmatic
  
• Dimensions: 7.50" x 6.00"
  
• What: Sundial, alemmatic
  
• Subject: 20. TIME MEASUREMENT, Sundials (Departmental Classification)
  
• Who: John Englebrect, Brunswick, Germany (Maker)
  Sir John Finlay Collection
  
• Where: Germany, Brunswick
  
• Event:
• Description: Alemmatic sundial in silvered brass, by John Englebrect, Brunswick, Germany, 1801
  
• References:
  • For sundials, see Turner, Anthony, Early Scientific Instruments 1400-1800. London: 1987, pp 173-82 
  • Recorded in Zinner, E., Deutsche and Niederlandische astronomische Instrumente des 11-18 Jahrhunderts. Munich: 1967, p 308 
  • The Sir John Findlay Collection; an important collection of scientific instruments (2 parts) / Sotheby & Co., London, 1961-1962 
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