Geographical Range

From International Dictionary of Marine Aids to Navigation
Revision as of 16:41, 18 February 2018 by Seamusd (talk | contribs) (Amended definition)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

The greatest distance at which an object or a light source can be seen under conditions of perfect visibility, as limited only by the curvature of the earth, by refraction of the atmosphere, and by the elevation of the observer and the object or light.

Ch2 Fig9.jpg



Source: ENG7, Guideline G1065 (2017)