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en.wikipedia.org/wiki/Nautical_mile

A nautical mile is a unit of measurement defined as 1,852 meters (6,076.1 ft; 1.1508 mi). Historically, it was defined as one minute of latitude, which is equivalent ...

en.wikipedia.org/wiki/Longitude

Longitude is a geographic coordinate that specifies the east-west position of a point on the Earth's surface. It is an angular measurement, usually expressed in degrees and denoted by ..... A geographical mile is defined to be the length of one minute of arc along the equator (one equatorial minute of longitude), so a degree of ...

en.wikipedia.org/wiki/Latitude

In geography, latitude is a geographic coordinate that specifies the north–south position of a ... Since there are many different reference ellipsoids, the precise latitude of a feature on the .... The length of 1 minute of latitude is 1.853 km or 1.151 miles, and this distance was formerly used as the basis of the nautical mile.

www.thoughtco.com/degree-of-latitude-and-longitude-distance-4070616

Do you know how far it is from one degree to the next? Discover the ... Each degree of latitude is approximately 69 miles (111 kilometers) apart. At the equator  ...

gis.stackexchange.com/questions/142326/calculating-longitude-length-in-miles

Apr 12, 2015 ... It doesn't matter at what longitude you are. What matters is what latitude you are. Length of 1 degree of Longitude = cosine (latitude in decimal ...