Gunter quadrant

Made:
1650-1725 in England
English  brass Gunter quadrant English  brass Gunter quadrant

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Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

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English brass Gunter quadrant
Science Museum Group
© The Board of Trustees of the Science Museum, London

English brass Gunter quadrant
Science Museum Group
© The Board of Trustees of the Science Museum, London

Gunter quadrant, maker unknown, made in England, 1650-1725.

Gunter quadrants are mathematical instruments that were used for basic astronomical calculation and time-telling. This quadrant has a scale for measuring altitude in degrees, Gunter’s trignonometric scale for making calculations and a shadow square.

Details

Category:
Astronomy
Object Number:
1938-386
Materials:
brass
Measurements:
overall: 5 x 121 x 121 mm
type:
gunter quadrant
credit:
Mr W.E. Miller