NauticalMart Marine Captain Sextant - Brass Nautical Sextant 8" with Wooden Box Marine Captain Sextant - Brass Nautical Sextant 8" Comes with wooden box Size: 20cm x 20cm x 10cm Manufactured by NauticalMart Best Gift For Your Family And Friends A sextant is an instrument used to measure the angle between any two visible objects. Its primary use is to determine the angle between acelestial object and the horizon which is known as the altitude. Making this measurement is known as sighting the object, shooting the object, or taking a sight. The angle, and the time when it was measured, can be used to calculate a position line on a nautical or aeronautical chart. A common use of the sextant is to sight the sun at noon to find one's latitude. This Is Antique Reproduction Solid brass Sextant, can be used for basic observation or suitable for collectors and can be a gift for someone Size: 20cm x 20cm x 10cm