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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
Essex
Waltham Abbey
W side of: Meridian Walk (Cornmill Meadows, Lee Valley Park)
Distance (N) from Greenwich
OS map detailsOS Explorer: 174
OS grid refTL 38225.01495
(538225,201495)
WGS84 lat/long51.695192, -0.001461
TypeTree
Marking date1984
AccessUnrestricted