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 ...

The fact is often overlooked that as the sextant is a double-reflecting instrument each degree of the circle is represented by two degrees of arc and, therefore, every motion of the head 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 ...