Sinical quadrant
Sinical quadrant. This instrument is designed to measure the angle above the horizon of an object. It is also marked with a sinical scale on the reverse, enabling complex mathematical calculations to be simplified.
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Object Details
ID: | NAV1044 |
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Collection: | Astronomical and navigational instruments |
Type: | Sinical quadrant |
Display location: | Not on display |
Creator: | Unknown |
Date made: | circa 1650 |
Credit: | National Maritime Museum, Greenwich, London, Rev. George Fisher Collection |
Measurements: | Overall: 13 x 161 x 166 mm |
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