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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
West Sussex
East Grinstead
S side of: Holtye Road (A264)
Distance (S) from Greenwich
OS map detailsOS Explorer: 135
OS grid refTQ 39918.38936
(539918,138936)
WGS84 lat/long51.132614, -0.001649
TypeMarker 'stone'
Marking date2000
AccessUnrestricted