POV: WHAT ARE THE MAJOR CONSTELLATIONS WE USE FOR CELESTIAL NAVIGATION: For celestial navigation, key constellations include Ursa Major (Big Dipper) and Ursa Minor (Little Dipper) for finding the North Star (Polaris) in the Northern Hemisphere, and Crux (Southern Cross) for finding the South Celestial Pole in the Southern Hemisphere, with recognizable patterns like Orion also used globally for time and orientation. Navigators focus on these prominent, recognizable patterns to determine direction