Tech Anchor on Instagram: "A nautical sextant is used to measure the angle between a celestial body (like the sun or stars) and the horizon for celestial navigation, which helps determine a vessel's latitude and longitude. It can also measure the angle between two landmarks to determine a position on a chart, a method known as a Horizontal Sextant Angle (HSA). Uses in navigation This video explains how to use a sextant for navigation: Follow us for more ship and marine videos #reelsgrowth #reeli