The prime meridian is the imaginary line that divides Earth into two equal parts: the Eastern Hemisphere and the Western Hemisphere. The original meridian was placed at the Royal Observatory. The prime meridian was used to establish Greenwich Mean Time, upon which all other time zones now depend. The prime meridian is arbitrary, meaning it could be chosen to be anywhere. It was only the nation of France who abstained and did not vote for the said convention’s beliefs. It is the circular line by which other longitudinal lines, or meridians, are referenced — otherwise it wouldn’t be prime. The prime meridian is subjective, which means it may be chosen anywhere. It's free and takes five seconds. Prime Meridian is the fictional line from the North Pole to the South Pole going through Greenwich in England and markings 0 ° longitude from where all other distances are measured. The IRM is the only meridian that may now be described as the prime meridian of the world, as it defines 0 ° longitude by international agreement. The French and Algerians, for example, used the Paris Meridian; the Swedes … The Prime Meridian runs through Greenwich, England and is at 0° longitude. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Prime Meridian. The Antimeridian, at 180° longitude, connects with the Prime Meridian to form a 3D giant circle all around the Globe, dividing it into Eastern and Western hemispheres. An international convention was held in 1884, at which time Greenwich was selected as the location of the single official prime meridian. The Prime Meridian is the universally decided zero longitude, an imaginary north/south line which bisects the world into two and begins the universal day. Another word for prime meridian. This line also separates the Eastern and Western Hemispheres. It is also commonly known as the Greenwich Meridian and is a component that forms the International Date Line, which then divides the Western and Eastern Hemispheres of the Earth. For many years, different countries measured longitude from different meridians. Visitors at Greenwich looking at the mark on the ground which represents the prime Meridian . Location of the Prime Meridian. Prime meridian 1. Sign up. Much the same as how the prime meridian parts east and west, central meridians do the same thing. Prime Meridian is an imaginary line that divides the Earth into Eastern and Western Hemispheres. The cross-hairs in the eyepiece of the telescope precisely defined Longitude 0° for the world. The Prime Meridian is the universally decided zero longitude, an imaginary north/south line which bisects the world into two and begins the universal day. Throughout time, the prime meridian has taken different places and exact locations. Other helpful pages on WorldAtlas. So, why Greenwich? The IRM passes 102.5 metres to the east of the historic Prime … As additional information, the Royal Observatory, where the prime meridian is based on, was established by a certain Sir George Airy in the year 1851. At those times, over two-thirds of the world has made Greenwich as the point of reference for the prime meridian. The prime meridian appears on maps and globes. Before clocks accurate enough to pinpoint longitude were … So, it goes through this beautiful town in England just outside of London called Greenwich. Find more ways to say prime meridian, along with related words, antonyms and example phrases at Thesaurus.com, the world's most trusted free thesaurus. The prime meridian is the arbitrary zero (0) line of longitude. Credits: NASA. Line . Prime Meridian. It’s important to know that Prime Meridian is arbitrary – this means, any meridian (line of longitude) can serve as the 0 … Here's a list of similar words from our thesaurus that you can use instead. Slicing the earth along the circle of the prime meridian would divide it into the Eastern and Western hemispheres — but it’s probably better to leave it in tact. Before clocks accurate enough to … Prime meridian definition is - the meridian of 0 degrees longitude which runs through the original site of the Royal Observatory at Greenwich, England, and from which other longitudes are reckoned. Its existence is purely abstract, but it is a globally-unifying line that makes the measurement of time (clocks) and space … This line also separates the Eastern and Western Hemispheres. PRIME MERIDIAM OF THE WORLD . France preferred their Paris Meridian, as did the Algerians. Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you Since maps are referenced against the prime meridian, having more than one was a source of some confusion, particularly when using maps from different countries. Since everyone is running around with their own GPS tracker or mobile phones with GPS capability, a visit to the Royal Observatory in Greenwich, London may have become a slightly disappointing affair for some. So, I mentioned that the prime meridian which runs through Greenwich England. The line starts at the north pole, passes across the Royal Observatory in Greenwich, England, and ends at the south pole. The Prime Meridian, as established by international treaty in 1884, is the official line marking 0 degrees longitude. The prime meridian definition is - an imaginary line that runs from the North Pole to the South Pole through Greenwich, England. It was established through scientific intervention and conventions. It is the 0 ° longitudinal line, the starting point for calculating distance across the Planet to … You can find this Prime Meridian running through Greenwich England. a line of longitude, at which longitude is defined to be 0°. Rates subject to change without notice. Vertical. It is also commonly known as the Greenwich Meridian and is a component that forms the International Date Line, which then divides the Western and Eastern Hemispheres of the Earth. The prime meridian is the line drawn north to south at 0° (0 degrees) longitude. This is why we sometimes call it the Greenwich line. Prime Meridian. Unlike the Equator’s position that is determined by the Earth’s rotational axis, the position of the Prime Meridian has been defined arbitrarily over the years as … Prime Meridian. Line lengths are called meridians, so that the line which passes through the Greenwich is the First meridian - Prime Meridian. At times, it is also referred to as the Greenwich Meridian. A prime meridian is a meridian, i.e. ” Find more words! And if you want to measure latitude, or north-south, what you need to do is just divide the space between those two poles. Unlike the Equator’s position that is determined by the Earth’s rotational axis, the position of the Prime Meridian has been defined arbitrarily over the … Much the same as how the equator isolates north and south, the Greenwich meridian isolates east and west. Prime Meridian goes through the Royal Observatory, Greenwich in London. If you … Such a meridian could be located anywhere but by convention it runs through Greenwich, England (that is Greenwich England is … PRIME MERIDIAM OF THE WORLD 2. The prime meridian is the planet’s line of zero degrees longitude. The prime meridian is the starting point for the calculation of geographic longitude and is the central meridian of the zero time zone. Projection systems use lines of longitude like the prime meridian. You can still have a prime meridian without Greenwich, England, though; you just need to be on the moon, Jupiter, or some other celestial body. Line. The prime meridian is also used as the basis for the world’s time zones. It was first established by Sir George Airy in 1851, and by 1884, over two-thirds of all ships and tonnage used it as the reference meridian on their charts and maps. The Prime Meridian is the meridian (line of longitude) that goes through the Royal Observatory, Greenwich in London it is also known as the International Meridian or Greenwich Meridian. What is Prime Meridian? Other longitudes are given as east or west of the Prime Meridian. It is also known as the Greenwich meridian and it is the basis of the standard time zone system GMT (Greenwich Mean Time) is a time zone and up to 1972, it was the international time standard. The Prime Meridian is an imaginary line that, similar to the equator, divides the earth into eastern and western hemispheres. It's free and takes five seconds. The Prime Meridian is the meridian (line of longitude) that goes through the Royal Observatory, Greenwich in London it is also known as the International Meridian or Greenwich Meridian.

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