Amplitude, magnetic

South Seas Companion
Natural Phenomenon

Magnetic amplitude is the angular distance of a heavenly body, when on the horizon, from the magnetic east or west point as indicated by a compass.

The difference between the magnetic and the true or astronomical amplitude is commonly called the variation of the compass.

Falconer, William, Online edition of William Falconer's Universal Dictionary of the Marine, or, a Copious Explanation of the Technical Terms and Phrases employed in the Construction, ...of a Ship...derived from the text of the London 1780 edition published by Thomas Cadell, 2004 edn, South Seas, http://paulturnbull.org/projects/southseas/refs/falc/contents.html. [ Details ]

Created: 3 March 2004

Published by South Seas, 1 February 2004
Comments, questions, corrections and additions: Paul.Turnbull@jcu.edu.au
Prepared by: Paul Turnbull
Updated: 28 June 2004
To cite this page use: http://nla.gov.au/nla.cs-ss-biogs-P000375