Background Luminance
A general area or large patch of light of roughly uniform brightness, directly behind an AtoN light, that impairs the mariner’s view of the AtoN light of interest.
Source: ENG7, Guideline G1073
A general area or large patch of light of roughly uniform brightness, directly behind an AtoN light, that impairs the mariner’s view of the AtoN light of interest.
Source: ENG7, Guideline G1073
ampere
Aid to Navigation
second
