Brass sextant in a leather case

Brass sextant in a leather case. The sextant is a navigation instrument used for measuring horizontal and vertical angles. In celestial navigation, it is used to measure the altitude of celestial bodies above the horizon, while in terrestrial navigation, it is used to measure vertical and horizontal angles between visible objects on Earth. The sextant is primarily a sailing instrument—sailors still learn how to use it so that, in the event of a GPS system failure, they can determine the ship's position based on observations and measurements of celestial bodies. The sextant is a great gift idea for a sailor, an astronomer, or an enthusiast of technical antiques. It will be a beautiful decoration for a study, office, or cabin. The NC 1514B sextant is a replica of the 1917 instrument made by Kelvin & Hughes of London. Product information: Dimensions: 13x12x6 cm Material: brass, glass Finish: antique Gift packaging: leather box Box dimensions: 14.50 x 14.50 x 7.25 cm Sextant - an instrument for navigators and astronomers. The sextant is an optical measuring instrument used for measuring vertical and horizontal angles. Invented by John Hadley in 1731, it became an essential tool for navigators and astronomers. What was the sextant used for? Navigation: The sextant was used to determine a ship's position at sea by measuring the altitude of stars and other celestial bodies above the horizon. Astronomy: Astronomers used the sextant to measure the angles between stars, planets, and other astronomical objects. Geodesy: The sextant was also used in geodesy to measure angles between points on Earth. Interesting facts about the sextant: The sextant is one of the most accurate measuring instruments ever invented. The sextant was used during the first space flights to measure the spacecraft's altitude and velocity. The sextant is still used for educational and scientific purposes.