Image description
The image shows the Globe, a sphere or circle, crossed by horizontal parallel lines, called latitudinal axes, superimposed on other semicircular lines, slightly curved, called longitudinal axes.
This geographic coordinate system uses angular coordinates to facilitate the positioning of any perimeter on the globe.
The system of geographical coordinates consists of longitudinal and latitudinal axes, which divide the globe into hemispheres or halves of the sphere. Thus, the latitudinal axes are the horizontal ones, also called parallels, with the longest of them dividing the Globe into two halves, called the Equator, at zero degrees. The two halves are called: the Northern Hemisphere, that is the upper half of the Globe, from zero degrees latitude, in the middle, to the North Pole at ninety degrees north latitude, at the top of the sphere; and the Southern Hemisphere, respectively the lower half of the Globe, from zero degrees latitude, in the middle, to the bottom, at the South Pole at ninety degrees south latitude, at the lower end of the sphere.
The longitudinal axes are the curved, semicircular ones, with the middle one that cuts the Equator in half, dividing the Globe into two hemispheres, called the Zero Degree Meridian, called the Prime meridian, which is considered to be Greenwich, which passes through Great Britain. The lines of longitude are called meridians. The two halves are called: the Eastern Hemisphere, that is the right half of the Globe, from zero degree longitude, and the Western Hemisphere, the left half of the Globe, from zero degree longitude.
