you use a sextant to navigate.
Sextant
A sextant.
the sextant
Sextant.
Sextant, instrument for determining the angle between the horizon and a celestial body such as the Sun, the Moon, or a star, used in celestial navigation to determine latitude and longitude. ... The angular distance of the star above the horizon is then read from the graduated arc of the sextant
He used a compass and a sextant on his expedition. :)
A sextant, possibly.
you can find sextant on history.com
The term "sextant" comes from the Latin word "sextans," meaning one-sixth. This refers to the instrument's ability to measure angles up to one-sixth of a circle (60 degrees). The sextant is commonly used in navigation to determine the altitude of celestial bodies.
you draw a sextant by looking at googler in the images.
So you can stay happy and feel good
Theodolite on land, sextant at sea