天てん測そく航こう法ほう

noun

celestial navigation; astronavigation

Technical term for determining a ship's or aircraft's position by observing celestial bodies. Synonymous with 天文航法.

See also: 天文航法

• 昔むかしの船ふな乗のりは天てん測そく航こう法ほうで位い置ちを知しった。

  Sailors in the past determined their position by celestial navigation.