| Other methods of aerial navigation, such as celestial navigation, produced no signals but depended upon the skillful use of instruments and the cooperation of the weather. |
| More about this will be mentioned when we come to celestial navigation. |
| Far from being a mere passenger, Hattie kept the ship's weather logs, learned celestial navigation and even handled the vessel on some occasions. |
| There's more to it than that, which is one of the basic rules of celestial navigation. |
| At Annapolis, he took a course in celestial navigation, which engendered his love of the sky. |
| In our third year at the National Defence Academy, we naval types branched off to learn celestial navigation and knots and splices. |
