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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)
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Telescopes used with Meridian Marks
 
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LocationEngland
Cambridgeshire
Swavesey
Ramper Road (in garden of No.5)
Distance (N) from Greenwich
OS map detailsOS Explorer: 225
OS grid refTL 36393.67838
(536393,267838)
WGS84 lat/long52.291752, -0.001581
TypePlaque (post)
Marking date2000
AccessUnrestricted