Gunter quadrant by Walter Hayes

Made:
1648-1687
maker:
Walter Hayes
English brass Gunter quadrant, with lead plumb bob, degree and trigonometric scales and vovelle (planispheric Group photograph of Portable universal equinoctial sundial, in brass, signed "A Ryther * Fecit * 1588" with inscription English brass Gunter quadrant, with lead plumb bob, degree and trigonometric scales and vovelle (planispheric English brass Gunter quadrant, with lead plumb bob, degree and trigonometric scales and vovelle (planispheric English brass Gunter quadrant, with lead plumb bob, degree and trigonometric scales and vovelle (planispheric English brass Gunter quadrant, with lead plumb bob, degree and trigonometric scales and vovelle (planispheric

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English brass Gunter quadrant, with lead plumb bob, degree and trigonometric scales and vovelle (planispheric
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Group photograph of Portable universal equinoctial sundial, in brass, signed "A Ryther * Fecit * 1588" with inscription
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

English brass Gunter quadrant, with lead plumb bob, degree and trigonometric scales and vovelle (planispheric
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

English brass Gunter quadrant, with lead plumb bob, degree and trigonometric scales and vovelle (planispheric
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

English brass Gunter quadrant, with lead plumb bob, degree and trigonometric scales and vovelle (planispheric
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

English brass Gunter quadrant, with lead plumb bob, degree and trigonometric scales and vovelle (planispheric
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Gunter quadrant with lead plumb bob made by Walter Hayes, Moorfields, London, 1648-1687. Signed with the monogram of Walter Hayes.

Gunter quadrants are mathematical instruments that were used for basic astronomical calculation and time-telling. This quadrant has a scale for measuring degrees of altitude and Gunter’s trignonometric scale for making calculations. It has a volvelle on the reverse consisting of a planispheric nocturnal.

Details

Category:
Astronomy
Object Number:
1911-250
type:
gunter quadrant
taxonomy:
  • furnishing and equipment
  • measuring device - instrument
  • timepiece
  • furnishing and equipment
  • measuring device - instrument
  • timepiece
  • horary quadrant
credit:
Mr W. Rayson