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- The Western Hemisphere is the half of the planet Earth that lies west of the Prime Meridian (which crosses Greenwich, London, England) and east of the 180th meridian.
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Oct 19, 2023 · The Western Hemisphere is west of the prime meridian and east of the International Date Line. The Americas, the western part of the British Isles (including Ireland and Wales), and the northwestern part of Africa are land masses in the Western Hemisphere.
The Greenwich meridian is a prime meridian, a geographical reference line that passes through the Royal Observatory, Greenwich, in London, England. From 1884 to 1974, the Greenwich meridian was the international standard prime meridian, used worldwide for timekeeping and navigation.
The line itself divided the eastern and western hemispheres of the Earth - just as the Equator divides the northern and southern hemispheres. If you stand with one foot on one side and the other on the left, you are perfectly in the middle of east and west, according to the prime meridian line.
Also called: prime meridian. Greenwich meridian, an imaginary line, last established in 1851, that was used to indicate 0° longitude. It passes through Greenwich, a borough of London, and terminates at the North and South poles. Because it indicated 0° longitude, it was also known as the prime meridian.
A prime meridian is an arbitrarily-chosen 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 .
Sep 21, 2023 · The 0° line of longitude starts at the Prime Meridian. It’s also called the Greenwich Meridian because it runs through Greenwich, England. Then, we can measure 180° to the west or 180° to the east. Lines of latitude start at the equator. Everything above the equator is from 0-90° north.
Jun 26, 2023 · Where is the Prime Meridian? The Prime Meridian passes through Greenwich, England. It is used as a reference point for timekeeping throughout the world. The Prime Meridian is the imaginary line drawn from pole to pole at the Earth’s equator, which divides the Earth into a Western Hemisphere and Eastern Hemisphere.
