Definition: Latitude lines are invisible horizontal lines on the Earth that can be used to help measure the specific location of things or places on the globe. The equator is measured as 0° and the numbers increase both to the North and to the South. For example, 10° N is found to the north of the equator, while 10° S is found to the south of the equator. The North Pole is measured at 90° N and the South Pole is measured at 90° S. The UK is located at 52° North.
° = degree(s).