Greenwich in Greater London, England, United Kingdom — Northwestern Europe (the British Isles)
The Greenwich Meridian Telescope
Photographed by Michael Herrick, April 28, 2018
1. The Greenwich Meridian Telescope Marker
Behind the window is the telescope which defines the Greenwich Meridian, the transit circle of 1850 designed by 7th Astronomer Royal, George Airy. It was the centre-line of this instrument which was adopted by an international conference in Washington, USA, in 1884 as the prirne meridian for the world, or Longitude 00° 00' 00". Both time and longitude are measured from this line.
Topics. This historical marker is listed in this topic list: Science & Medicine.
Location. 51° 28.672′ N, 0° 0.089′ W. Marker is in Greenwich, England, in Greater London. It can be reached from the intersection of Blackheath Avenue and Great Cross Avenue, on the left when traveling north. Located at the Royal Observatory Greenwich. Touch for map. Marker is in this post office area: Greenwich, England SE10 8XJ, United Kingdom. Touch for directions.
Regionally, this marker is in the Greater South East. Globally, it is on the Atlantic Ocean, in the North Atlantic Region, in Europe, in Atlantic Europe, on one of the British Isles, in the Western World, and in the Anglosphere. Historically,
this page online
Other nearby markers. At least 8 other markers are within walking distance of this marker: Airys meridian line (here, next to this marker); Time for everyone (here, next to this marker); Bradleys meridian line (here, next to this marker); William Herschels Telescope (a few steps from this marker); The Shepherd 24-hour Gate Clock (a few steps from this marker); Ordnance Survey Bench Mark (a few steps from this marker); Flamsteeds Well Telescope (a few steps from this marker); Greenwich Meridian Marker, 1750-1851 (a few steps from this marker). Touch for a list and map of all markers in Greenwich.
Also see . . . Royal Observatory, Greenwich on Wikipedia. (Submitted on May 25, 2018, by Michael Herrick of Southbury, Connecticut.)
Photographed by Michael Herrick, April 28, 2018
2. The Greenwich Meridian Telescope Marker
Photographed by Michael Herrick, April 28, 2018
3. The Greenwich Meridian Telescope Marker next to the Prime Meridian
Credits. This page was last revised on January 27, 2022. It was originally submitted on May 25, 2018, by Michael Herrick of Southbury, Connecticut. This page has been viewed 358 times since then and 32 times this year. Photos: 1, 2, 3. submitted on May 25, 2018, by Michael Herrick of Southbury, Connecticut.
