Answer:
True
Step-by-step explanation:
An astrolabe is an ancient astronomical instrument that allows you to determine the position and height of the stars above the sky. The astrolabe was used by navigators, astronomers and scientists in general to locate the stars and observe their movement, to determine the time from latitude or, vice versa, to find out the latitude by knowing the time. It also serves to measure distances by triangulation. Muslim sailors often used it also to calculate the prayer time and locate the address of Mecca. During the XVI to XVIII centuries, it was used as the main instrument of maritime navigation, until the invention of the sextant, in 1750.