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.
Way of the Celestial Masters The Celestial Masters later reemerged in the 4th and 5th centuries as two distinct offshoots, the Northern and Southern Celestial Masters. Celestial Masters had prophecy rituals banned since what happens in the future it was supposed to be just known already by the member without rituals. For the water, earth, and heaven officials, Celestial Masters wrote the 三官手書 sanguan shoushu. After the fall of Luoyang to non-Chinese invaders in 311, the remnants of the court fled to Jiankang (modern-day Nanjing) and established a new state known as the Eastern Jin dynasty. Among the court members who fled were members of