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 ... These ...

astro.unl.edu/naap/motion1/tc_units.html

The primary unit in which longitude and latitude are given is degrees (°). There
are 360° of longitude (180° E ↔ 180° W) and 180° of latitude (90° N ↔ 90° S).

academic.brooklyn.cuny.edu/geology/leveson/core/linksa/lat_long.html

If we put both the latitude lines and the longitude lines together on the sphere, ...
Well, there's 360 degrees in a circle, so if we divide 24,901.92 miles by 360 ...

www.worldatlas.com/aatlas/imageg.htm

Jul 12, 2016 ... For precision purposes, degrees of longitude and latitude have been divided into
minutes (') and seconds ("). There are 60 minutes in each ...

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

Apr 12, 2015 ... 1° longitude = cosine (latitude) * length of degree (miles) at equator. So my
question is how many miles is 1° longitude at longitude: ...

www.reference.com/geography/many-minutes-one-degree-latitude-a701cbbc626100d3

Just like there are 60 minutes in 1 hour, there are 60 minutes in 1 degree of
latitude. Note that a ... How do you convert latitude and longitude to decimals?

www.reference.com/geography/many-lines-latitude-earth-9159d6cc755d062a

There are 180 lines of latitude assigned to the surface of the Earth, not including
the ... Latitude is measured as degrees above or below the equator, which sits at
zero ... grid system used to map the earth consists of latitude and longitude lines.

www.coastalnavigation.com/samples/sec_1/1_pages/1_2.htm

In theory there are an infinite number of parallels and meridians. For
convenience they are ordered into scales made up of degrees ( ° ) and fractions
of degrees.

www.answers.com/Q/How_many_degrees_of_longitude_are_there

There are 180 degrees of longitude on both the east and west of the Prime
Meridian. They add up to 360 degrees, however, the maximum number of
degrees ...

www.sacred-texts.com/earth/za/za42.htm

If the degrees of longitude are less beyond, or to the south of the equator, than ....
"Assuredly there are many shipwrecks from alleged errors in reckoning which ...