There's nothing mystical or complicated about a sextant. All it is is a device that measures the angle between two objects. The sextant makes use of two mirrors. With this sextant, one of the ...

There's no way around it: Celestial navigation using a sextant is a complex and involved process that involves a fair amount of calculating, correcting, referring to tables, knowledge of the ...

This eventually gave rise to the sextant, which uses two mirrors to view the heavenly body and the horizon. To make it work, ...

In my flight bag is a World War II-vintage Pioneer-Bendix bubble sextant, which I use—just for fun—to see how close those earlier navigators could come to the position fixes now provided by ...