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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
East Sussex
Forest Row
W side of: unnamed road
Distance (S) from Greenwich
OS map detailsOS Explorer: 135
OS grid refTQ 40096.31914
(540096,131914)
WGS84 lat/long51.069467, -0.001830
TypeTree | Plaque (tree)
Marking date1984
AccessUnrestricted. Plaque now missing