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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
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International Meridian Conference (1884)
Meridian Day (1984)
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LocationEngland
East Sussex
Danehill
N side of: School Lane
Distance (S) from Greenwich
OS map detailsOS Explorer: 135
OS grid refTQ 40339.27790
(540339,127790)
WGS84 lat/long51.032347, 0.000039
TypeObelisk/Pillar | Time capsule
Marking date1 Jan & 1 May 2000
AccessUnrestricted