 Celestial navigation

Celestial navigation is a technique used for determining one's position on the Earth using the positions of celestial bodies—such as the sun, moon, stars, and planets. It is primarily employed by mariners and aviators and has been a fundamental method of navigation for centuries, especially prior to the advent of modern electronic navigational aids. The process involves measuring angles between these celestial bodies and the horizon using a sextant or other navigational instruments.