the opposite of the prime meridian is called antipodes.
the opposite of the prime meridian is called antipodes.
what is the opposite of the prime meridian called?
antipodes
prime meridian









































a prime meridian is a meridian (a line of longitude) in a geographic coordinate system at which longitude is defined to be 0°. together, a prime meridian and its anti-meridian (the 180th meridian in a 360°-system) form a great circle. this great circle divides a spheroid, e.g., earth, into two hemispheres. if one uses directions of east and west from a defined prime meridian, then they can be called the eastern hemisphere and the western hemisphere.
prime meridian
in october 1884 the greenwich meridian was selected by delegates (forty-one delegates representing twenty-five nations) to the international meridian conference held in washington, d.c., united states to be the common zero of longitude and standard of time reckoning throughout the world. the modern prime meridian, the iers reference meridian, is placed very near this meridian and is the prime meridian that currently has the widest use.









































section::::international prime meridian.:prime meridian at greenwich.









































the modern prime meridian, based at the royal observatory, greenwich, was established by sir george airy in 1851.
prime meridian