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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)
The Millennium
Millennium Tree Line (MTL)
Meridian Laser
Astronomers Royal
Telescopes used with Meridian Marks
 
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LocationEngland
Cambridgeshire
Flood's Ferry
S side of: River Nene (old course)
Distance (N) from Greenwich
OS map detailsOS Explorer: 227
OS grid refTL 35690.93657
(535690,293657)
WGS84 lat/long52.523900, -0.001422
TypeSign on post(s)
Marking date2000
AccessBy boat: also visible from public footpath