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Royal Observatory Greenwich
Latitude and Longitude
Airy Transit Circle (ATC)
WGS84 and the Greenwich Meridian
The Greenwich Meridian before the ATC
The Quest for Longitude
International Meridian Conference (1884)
Meridian Day (1984)
The Millennium
Millennium Tree Line (MTL)
Meridian Laser
Astronomers Royal
Telescopes used with Meridian Marks
 
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LocationEngland
West Sussex
East Grinstead
Meridian Hall, East Court, College Lane
Distance (S) from Greenwich
OS map detailsOS Explorer: 135
OS grid refTQ 39896.38561
(539896,138561)
WGS84 lat/long51.129250, -0.002109
TypeBuilding name
Marking dateUnknown
AccessExternally: unrestricted. Internally: event venue