A sextant is a navigational tool used, most commonly, for celestial navigation. It essentially measures the altitudes of objects to determine a line of position. It can also be used to determine distance off objects of known heights, like a mountain or a lighthouse - and can even be used to measure angles horizontally.
you use a sextant to navigate.
the sextant helped me navagate my way to alaska
Yes Christopher Columbus did use a sextant along with a compass, ampoletta, and a cross staff.
by using it
the sextant
Use a sextant
He used a compass and a sextant on his expedition. :)
A sextant is a navigational instrument that sights upon the stars to determine a ship's position. This instrument was crucial to naval navigation until global positioning became a reality in the late 20th century. "Henry the Navigator prized his sextant while on his journeys to the New World." "The ship's position is determined by the use of the ship's navigator using a sextant."
you can find sextant on history.com
Sextant
you draw a sextant by looking at googler in the images.
he was and italian navigator what do they use for exploring