It is a mediaeval instrument for measuring the altitude of the sun and other sky objects, now replaced by the sextant.
the astrolabe was one of them
catorgraphy astrolabe navigational compass aircraft APEX ;P
Help which one is it A) a mariner's compass B) circumnavigation C) the astrolabe D) the caravel
tape measure?
Because an angle is a degree. It would be pretty silly to measure them in, say, horsepower, no?
The astrolabe needs to be lined up with north so that the user can accurately measure the altitude of a celestial object. By aligning the astrolabe with north, the user can ensure that the measurements taken are correctly referenced against the horizon and celestial coordinates.
ASTROLABE
That is what its purpose was and what it did.
A cross staff is a navigational instrument used to measure angles, typically for celestial navigation, by aligning a crosspiece with an object in the sky. An astrolabe is a historical instrument used to observe and measure the positions of stars and planets. It was used for navigation, timekeeping, and astrology.
Sailors used an astrolabe to measure the angle of the sun or a star above the horizon. By knowing this angle and the current date, they could calculate their latitude at sea. This helped them navigate and determine their position on the open ocean.
When the astrolabe is leveled, it allows the user to accurately measure the altitude of celestial objects above the horizon. This information can then be used to determine one's latitude on Earth. By aligning the astrolabe and leveling it properly, the user can obtain precise readings for astronomical navigation.
An astrolabe is an ancient navigation instrument used to measure the altitude of celestial bodies, typically used for determining latitude and telling time. It consists of a disk with a rotating arm and sights for taking measurements of the stars and planets.
compass, and the astrolabe
The astrolabe and quadrant were essential instruments for navigation and astronomy during the medieval period. The astrolabe allowed users to measure the altitude of celestial bodies, helping to determine latitude at sea and during land travel. Meanwhile, the quadrant provided a means to measure angles and distances, enabling navigators to assess their position relative to the horizon and celestial objects. Together, these tools facilitated more accurate navigation and a better understanding of the cosmos.
== == the astrolabe is to find the altitude of a stellar object
The word astrolabe is a noun. The plural is astrolabes.
astrolabe=star+mechanical clock