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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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Telescopes used with Meridian Marks
 
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LocationEngland
Cambridgeshire
Orwell
W side of: Malton Road
Distance (N) from Greenwich
OS map detailsOS Explorer: 209
OS grid refTL 36872.50034
(536872,250034)
WGS84 lat/long52.131666, -0.001754
TypeObelisk/Pillar
Marking date31 Dec 2000
AccessUnrestricted