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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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Astronomers Royal
Telescopes used with Meridian Marks
 
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LocationEngland
Cambridgeshire
Swavesey
N side of: Station Road
Distance (N) from Greenwich
OS map detailsOS Explorer: 225
OS grid refTL 36337.69400
(536337,269400)
WGS84 lat/long52.305800, -0.001769
TypePlaque (post)
Marking date2000
AccessUnrestricted