Home
Interactive UK map
Interactive World map
Visit
 
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
 
Coordinate Systems
Useful Links
 
Search
LocationEngland
LB Greenwich
Greenwich (SE10)
Royal Observatory, Courtyard (on Bradley Meridian)
Distance (N) from Greenwich
OS map detailsOS Explorer: 161 or 162
OS grid refTQ 38876.77348
(538876,177348)
WGS84 lat/long51.478051, -0.001593
TypeAstronomical
Marking date13 Oct 1797
AccessRestricted (charged entry)