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Direction determination refers to the ways in which a cardinal direction or compass point can be determined in navigation and wayfinding.The most direct method is using a compass (magnetic compass or gyrocompass), but indirect methods exist, based on the Sun path (unaided or by using a watch or sundial), the stars, and satellite navigation.
32-point compass rose. The points of the compass are a set of horizontal, radially arrayed compass directions (or azimuths) used in navigation and cartography.A compass rose is primarily composed of four cardinal directions—north, east, south, and west—each separated by 90 degrees, and secondarily divided by four ordinal (intercardinal) directions—northeast, southeast, southwest, and ...
A bearing compass is a magnetic compass mounted in such a way that it allows the taking of bearings of objects by aligning them with the lubber line of the bearing compass. [79] A surveyor's compass is a specialized compass made to accurately measure heading of landmarks and measure horizontal angles to help with map making .
An 8-point compass rose is a prominent feature in the logo of the Seattle Mariners Major League Baseball club. Hong Kong Correctional Services's crest uses a four-pointed compass rose. The compass rose is used as the symbol of the worldwide Anglican Communion of churches. [22] A 16-point compass rose was IBM's logo for the System/360 product line.
A modern military compass, with included sight device for aligning. A compass is a device that shows the cardinal directions used for navigation and geographic orientation. It commonly consists of a magnetized needle or other element, such as a compass card or compass rose, which can pivot to align itself with magnetic north.
Montage of 8 pages (the third to sixth leaves) of the original 1375 Catalan Atlas Detail of the Catalan Atlas, the first compass rose depicted on a map. The Catalan Atlas (Catalan: Atles català, Eastern Catalan: [ˈatləs kətəˈla]) is a medieval world map, or mappa mundi, probably created in the late 1370s or the early 1380s (often conventionally dated 1375), [1] [2] that has been ...
Map of western Europe, anonymous and undated, preserved in the Ambrosiana Library, dating from the 14th [21] or 15th centuries. In addition there is a detailed description of a nautical Arab map of the Mediterranean in the Encyclopedia of the Egyptian Ibn Fadl Allah al-'Umari , written between 1330 and 1348. [ 19 ]
The Hereford Mappa Mundi, Hereford Cathedral, England, c. 1300, a classic "T-O" map with Jerusalem at the center, east toward the top, Europe the bottom left and Africa on the right. The orientation of a map is the relationship between the directions on the map and the corresponding compass directions in reality.