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.
Journal of Abnormal Psychology and 11th out of 121 journals in the category "Psychology, Clinical". Journal of Abnormal Psychology The Journal of Abnormal Psychology is a peer-reviewed academic journal published by the American Psychological Association (APA). The journal has been in publication for 110 years, and it is considered to be a "preeminent outlet for research in psychopathology". The "Journal of Abnormal Psychology" addresses the following major areas of focus: The journal began publication in April 1906 under the ownership of Richard G. Badger of Boston and the editorship of Morton Prince. In 1921, the name was changed to the "Journal of Abnormal Psychology