Celestial navigation Celestial navigation Celestial navigation, also known as astronavigation, is the ancient and modern practice of position fixing that enables a navigator to transition through a space without having to rely on estimated calculations, or dead reckoning, to know their position. Celestial navigation uses "sights", or angular measurements taken between a celestial body (e.g. the Sun, the Moon, a planet, or a star) and the visible horizon. The Sun is most commonly used, but navigators can also use the Moon, a planet, Polaris, or one of 57 other navigational stars whose coordinates are tabulated in the nautical almanac and air almanacs.
The Northern Celestial Masters The Northern Celestial Masters The Northern Celestial Masters type of the Way of the Celestial Master () Daoist movement existed in the north of China during the Southern and Northern Dynasties. The Northern Celestial Masters were a continuation of the Way of the Celestial Masters as it had been practiced in Sichuan province by Zhang Lu and his followers. After the community was forced to relocate in 215 CE, a group of Celestial Masters established themselves in Northern China. Kou Qianzhi, from a family who followed the Celestial Master, brought a new version of Celestial Master Daoism to the Northern