Islamic horary quadrant, Persian, 1701-1800

Made:
1701-1800 in Iran
maker:
Unknown
Islamic horary quadrant. Persian wooden horary quadrant (25-cm radius) with painted scales. Full view of quadrant, Islamic horary quadrant. Persian wooden horary quadrant (25-cm radius), with painted scales. Full view of quadrant half Wooden horary quadrant, Persian, 18th century.  This unsigned Islamic horary quadrant was made in Persia. Made of wood.

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Islamic horary quadrant. Persian wooden horary quadrant (25-cm radius) with painted scales. Full view of quadrant,
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Islamic horary quadrant. Persian wooden horary quadrant (25-cm radius), with painted scales. Full view of quadrant half
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Wooden horary quadrant, Persian, 18th century. This unsigned Islamic horary quadrant was made in Persia. Made of wood.
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Wooden horary quadrant (25-cm radius) with painted scales and leather case, Islamic script, unsigned, Persia, 1701-1800.

This unsigned Islamic horary quadrant was made in Persia (Iran) during the eighteenth century. Made of wood the quadrant has hand drawn painted scales and inscriptions. The horary quadrant was used for finding local time by sighting either the Sun or a bright star at night. Held vertically, a measurement could be taken from the position on the scale of a moveable bead on the thread of the plumb bob of the instrument. The horary quadrant was derived from the astrolabe and first appeared during the Medieval Period. Like its predecessor, it includes a two-dimensional depiction of a celestial sphere that is reduced to a quarter.

Details

Category:
Astronomy
Object Number:
1918-261
Materials:
case, leather and wood
type:
horary quadrant
taxonomy:
  • disciplines
  • disciplines
  • science
  • natural sciences
  • physical sciences
  • furnishing and equipment
  • measuring device - instrument
  • timepiece
credit:
Mrs Philiss D Lee