成人快手

Historic norths' alignment over Scotland in 2026

FraserburghImage source, Getty Images
Image caption,

T锘縭ue, magnetic and grid north are expected to align over Fraserburgh in 2026

At a glance

  • True, magnetic and grid north have aligned for the first time in UK map-making history, according to Ordnance Survey

  • M锘縜p experts said Scotland would become the focus of the triple alignment in coming years

  • T锘縣ey said the converged line's 'last stop' on the UK landmass would be Fraserburgh

  • O锘縎 said this would happen around July 2026

  • Published

N锘縪rth east Scotland is to be the focus of a historic alignment of three norths used for navigation in Great Britain, according to Ordnance Survey (OS).

M锘縜p experts said true, magnetic and grid north met at a single point for the first time in British mapping history at Langton Matravers, near Swanage in Dorset on Wednesday.

A锘縡ter August 2025, the triple alignment will not hit land again until around May 2026 near Newburgh on the east Aberdeenshire coast.

O锘縎 said its "last stop" on the UK landmass would be Fraserburgh around July 2026.

D锘縰e to the unpredictability of the magnetic field, OS said it was hard to forecast when the three norths might align again. It said an estimated would be a few hundred years at least.

'锘縒andering' north

Grid north is the blue line on an OS map that points to the North Pole.

True north is the direction of lines of longitude that also converge at the North Pole, but this varies from grid north as it reflects the curve of the Earth.

Magnetic north marks the north-ward line to the magnetic North Pole.

O锘縎 said the position of the magnetic North Pole moves continually north-westward due to adjustments in the magnetic field in the core of the Earth.

It said it was this "wandering" which had created the convergence and the historic alignment.

British Geological Survey data is among the information OS has used to help make its calculations.

I锘縩 2014, Mountaineering Scotland looked into the implications for navigation in the hills due to the shifting of magnetic north.

Related topics