Open AccessOn a night sky of exceptional brightness, and on the distinction between the polar aurora and the night sky
Author(s) -
Lord Rayleigh
Publication year - 1931
Publication title -
proceedings of the royal society of london. series a, containing papers of a mathematical and physical character
Language(s) - English
Resource type - Journals
eISSN - 2053-9150
pISSN - 0950-1207
DOI - 10.1098/rspa.1931.0059
Subject(s) - brightness , sky , night sky , line (geometry) , sky brightness , polar , emission spectrum , optics , airglow , astronomy , remote sensing , environmental science , physics , meteorology , geology , spectral line , mathematics , geometry
For more than seven years past I have had in progress systematic photometric measurements on the brightness of the night sky as seen through certain colour filters. These filters are designed to isolate separate portions of the spectrum in the red, green, and blue. The green one isolates nearly as possible the light of the green auroral line due to oxygen, but the isolation is very imperfect, and, in fact, the continuous background of the spectrum often contributes more to the transmitted light does the auroral line.