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Line 1: − Rayleighs are used to measure the [[luminous]] intensity of the [[aurora]].+ − A Rayleigh = 106 photons emitted in all directions per cm<sup>2</sup> vertical column per second. + + + − [[Category:Astronomy]]+
Disambig
'''Rayleigh''' may refer to:
*[[John William Strutt, 3rd Baron Rayleigh]], '''Lord Rayleigh''';
*[[Robert John Strutt, 4th Baron Rayleigh]];
* The [[Rayleigh (unit)]], a unit of luminous flux;
{{Disambiguation}}