The Prime Meridian (pictured) at the Royal Observatory in Greenwich was originally agreed at a meeting in Washington in 1884, but the telescope used to measure it was out of alignment. The Greenwich Meridian was selected as an international standard in 1884 by forty-one delegates from 25 nations. The cross-hairs in the eyepiece of the telescope precisely defined Longitude 0° for the world. The Greenwich Meridian separates east from west in the same way that the Equator separates north from south. The first was the fact that the USA had already chosen Greenwich as the basis for its own national time zone system. In addition, Greenwich Mean Time (GMT) is used as standard time in several countries such as the United Kingdom, Republic of Ireland, Portugal, Canary Islands (Spain), Ghana, the Faroe Islands, Iceland, Senegal, Sahrawi Arab Democratic Republic, etc.Road map of Prime Meridian (Greenwich) shows where the location is placed.We do not guarantee the accuracy of the given coordinates of the places in our database. Since the late 19th century, the Prime Meridian at Greenwich has divided the eastern and western hemispheres of the earth - just as the equator divides the northern and southern hemispheres. Explore the historic buildings Le méridien de Greenwich est le méridien qui sert de référence internationale de longitude, d'où son nom de « méridien origine ». 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.

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The latitude of Prime Meridian (Greenwich) is 51.477928, and the longitude is -0.001545.Prime Meridian (Greenwich) is located at United Kingdom country in the Notable Buildings place category with the gps coordinates of … There were two main reasons for the choice. Planetarium currently closed TRAVEL . Néanmoins, c'est le méridien de référence de l'IERS (IRM = « International Reference Meridian ») situé à une centaine de mètres qui sert, par exemple, de référence pour le système de géolocalisation GPS, le système géodésique WGS 84, pour toutes les cartes marines de l'organisation hydrographique int…

Inextricably linked with Greenwich Mean Time, it also sits at the centre of our system of time zones. Stand on the historic Prime Meridian of the World at the home of Greenwich Mean Time (GMT)Unlimited entry all year from £49, including Planetarium showsStand on the historic Prime Meridian of the World at Royal Observatory Greenwich, the home of Greenwich Mean Time (GMT).Since the late 19th century, the Prime Meridian at Greenwich has divided the eastern and western hemispheres of the earth - just as the equator divides the northern and southern hemispheres.In 1884 the Prime Meridian was defined by Transit Circle telescope at the Royal Observatory which was built by Sir George Biddell Airy, the 7th Astronomer Royal, in 1850. South- East London is being developed and is rapidly becoming “the place to be in London . Child goes free (until 31 Aug) Royal Observatory, Meridian Line and Historic Royal Observatory, Meridian CourtyardMembers visit Cutty Sark and Royal Observatory for free, and will receive...The meridian line in Greenwich represents the Prime Meridian of the world,...Available from our Online Shop, our exclusive replica Shepherd Wall Clock.

An international conference held in Washington, D.C., in 1884 designated “the meridian passing through the centre of the transit instrument at the Observatory of Greenwich as the initial meridian for longitude.” Please use Latlong.net at your own risk. You can stand on the Line at the Royal Observatory in Greenwich Park with one foot in each half of the earth as well as you can see the laser projected from the Royal Observatory in Greenwich, marking the Prime meridian. Prime Meridian (Greenwich) Lat Long Coordinates Info. The Meridian Line, or Prime Meridian in Greenwich, an imaginary line used to indicate 0° longitude, is the dividing point between the eastern and western hemispheres. Greenwich is located just west of Woolwich, here you will find an abundance of attractions such as the O2 arena, Greenwich Park, The Valley Stadium; home to Carlton Athletic and The Royal Observatory.

Why does the Prime Meridian run through Greenwich?

The observatory is home to the Airy Transit Circle, a telescope designed by George Biddell Airy in the 19th century, which marks the location of the prime meridian, the line running along 0° of longitude, where the Earth's western and … Child goes free (until 31 Aug)

Its path is determined by the location of an historic telescope, the Airy Transit Circle, which is housed at the Royal Observatory, Greenwich. 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. The prime meridian is a geographical reference line that passes through the Royal Observatory, Greenwich, in London, England. In 1884 the Prime Meridian was defined by Transit Circle telescope at the Royal Observatory which was built by Sir George Biddell Airy, the 7th Astronomer Royal, in 1850.

... Greenwich meridian, imaginary line used to indicate 0° longitude that passes through Greenwich, a borough of London, and terminates at the North and South poles.