Gunter quadrant, maker unknown, made in England, 1650-1725. Mounted on to a mahogany base.
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:
- 1919-319
- Materials:
- brass, mahogany and incomplete
- Measurements:
-
overall: 17 x 120 x 120 mm
- type:
- gunter quadrant
- credit:
- Mr Thomas H. Court