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.
Celestial Eye of William T. Innes's "Goldfish Varieties and Tropical Aquarium Fishes" in 1917. American fanciers successfully bred the fish and, in turn, exported foundation stock to Great Britain. After World War II, and ever since, the majority of Celestials exported from Asia are of Chinese origin. A Celestial goldfish is depicted on a postage stamp issued in 1960 by the People's Republic of China. The Celestial is a goldfish that has an elongated egg-shaped body similar to the Bubble Eye. Like the Bubble Eye, the Celestial does not have a dorsal fin. Their paired fins are of the Fantail or Ryukin