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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
Orwell
W side of: Malton Road
Distance (N) from Greenwich
OS map detailsOS Explorer: 209
OS grid refTL 36870.49992
(536870,249992)
WGS84 lat/long52.131289, -0.001800
TypeTree | MTL | MTL disc(s)
Marking date1998?
AccessUnrestricted. MTL disc no longer present