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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
Surrey
Oxted
Station Road East (on wall of No.20)
Distance (S) from Greenwich
OS map detailsOS Explorer: 146
OS grid refTQ 39547.52812
(539547,152812)
WGS84 lat/long51.257401, -0.001560
TypePlaque (wall)
Marking date1984
AccessUnrestricted