Navigational Astronomy

Navigational astronomy is the use of celestial objects—such as stars, planets, the Sun, and the Moon—to determine one's position and direction on Earth or at sea. By measuring angles between these objects and referencing their known positions, navigators can calculate latitude, longitude, and course. Historically essential for maritime travel before modern GPS, it relies on understanding astronomical movements and timing to find precise locations. Today, while technology has advanced, the principles of navigational astronomy remain fundamental in establishing orientation and ensuring accurate navigation in various contexts.