Imaginary line
Encyclopedia
In general, an imaginary line is any sort of line that has only an abstract definition, and does not exist in fact.
As a geographical
concept, an imaginary line may serve as an arbitrary division (such as a border
). It may also be a standardized mark that serves as a measurement or point of reference (such as a circle of latitude
or the Prime Meridian
).
As a geographical
Geography
Geography is the science that studies the lands, features, inhabitants, and phenomena of Earth. A literal translation would be "to describe or write about the Earth". The first person to use the word "geography" was Eratosthenes...
concept, an imaginary line may serve as an arbitrary division (such as a border
Border
Borders define geographic boundaries of political entities or legal jurisdictions, such as governments, sovereign states, federated states and other subnational entities. Some borders—such as a state's internal administrative borders, or inter-state borders within the Schengen Area—are open and...
). It may also be a standardized mark that serves as a measurement or point of reference (such as a circle of latitude
Circle of latitude
A circle of latitude, on the Earth, is an imaginary east-west circle connecting all locations that share a given latitude...
or the Prime Meridian
Prime Meridian
The Prime Meridian is the meridian at which the longitude is defined to be 0°.The Prime Meridian and its opposite the 180th meridian , which the International Date Line generally follows, form a great circle that divides the Earth into the Eastern and Western Hemispheres.An international...
).