prime meridian definition for kids

Definition of prime meridian written for English Language Learners from the Merriam-Webster Learner's Dictionary with audio pronunciations, usage examples, and count/noncount noun labels. If you are planning to study Geography, there are a number of facts and definitions you are going to want to familiarize yourself with. 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. It is sometimes referred to as the Greenwich Meridian. 3. See the fact file below for more information on the prime meridian: The Prime Meridian divides the Earth into East/West from the North Pole to the South Pole with an imaginary line along the longitude line of 0°. The true prime meridian of the world, as agreed by every nation on the planet in 1984, is the IERS Reference Meridian, which is also known as the International Reference Meridian or IRM. 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. 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. The prime meridian is a line of geographical longitude that is defined at 0°. The prime meridian of longitude is in Greenwich, South London. 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. *meridian* a circle of constant longitude passing through a given place on the earth's surface and the terrestrial poles; in astronomy, a circle passing through the celestial poles and the zenith of a given place on the earth's surface.Recorded from late Middle English, the word comes via Old Fr Interactive Time Zone Map Time zones are divided by imaginary lines called meridians which run from the North Pole to the South Pole. : And it's where time itself starts, being the site of the prime meridian, Greenwich Mean Time or degrees longitude, depending on what you prefer. The placement of the prime meridian is a purely pol UTC time changes 1 hour forward and backward corresponding to a 1-hour difference in mean solar time for every 15 degrees east or west of the prime meridian (0° longitude) in Greenwich, London, United Kingdom. Any line of longitude (a meridian) can serve as the 0 longitude line. Learn Prime meridian facts for kids. However, there is an international agreement that the meridian that runs through Greenwich, England, is considered the official prime meridian. An international conference held in Washington, D.C., in 1884 designated “the meridian passing through the centre of the transit What are synonyms for prime meridian? Prime meridian definition, the meridian running through Greenwich, England, from which longitude east and west is reckoned. The Prime Meridian separates the Eastern and Western Hemispheres. 2. Antonyms for prime meridian. Absolute Location vs Relative Location: Absolute Location: describes the exact position of a point, often using latitude and longitude “Kenya’s latitude and longitude is 1° 00′ N and 38° 00′ E; that is 1° north of the equator, and 38° east of the prime meridian.”. A prime meridian is a meridian (a line of longitude) in a geographical coordinate system at which longitude is defined to be 0°. The Prime Meridian is the meridian defined as 0°00’00” longitude. The Prime Meridian runs through Greenwich, England and is at 0° longitude. The meridian (line of longitude) passing through Royal Greenwich Observatory, Greenwich, England is called the prime meridian (longitude = 0 degrees).. Ptolemy was free, however, to lay his prime meridian, the zero-degree longitude line, wherever he liked. 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 Greenwich in the United Kingdom. To help locate where a place is in the world, people use imaginary lines called latitude and longitude. Locations on Earth are measured in degrees east or west from this position. Search the meaning and definition of over one hundred thousand words! There is an imaginary line running through the UK called the Prime Meridian. The Equator separates the Northern and Southern Hemispheres. Find out more with Bitesize KS2 Geography. There are 10 multiple choice questions which cover the equator, prime meridian, latitude, & longitude and can be used as a quiz, test, or additional practice. The offset is expressed as either UTC- or UTC+ and the number of hours and minutes. 13 sentence examples: 1. Translate Prime meridian to English online and download now our free translation software to use at any time. It is generally known as zero degrees longitude or vertical line of reference in […] Prime Meridian Definition for Kids. : The prime meridian is the line that separates geographic east from west on the globe. Meridian (geography) synonyms, Meridian (geography) pronunciation, Meridian (geography) translation, English dictionary definition of Meridian (geography). 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