English Spectral G-index Cited by user Anotherdoon on 12 Feb 2019 The spectral G-Index is a variable that was developed to quantify the amount of short wavelength light in a visible light source.
English Light pollution Cited by user 70.28.53.8 on 26 Jan 2017 Light pollution is the presence of anthropogenic and artificial light in the night environment.
English Skyglow Cited by user Cluginbuhl on 10 Apr 2016 Skyglow (or sky glow) is the illumination of the night sky or parts of it. The most common cause of skyglow is artificial light that emits light pollution, which…
English Sodium-vapor lamp Cited by user Cluginbuhl on 15 Apr 2014 A sodium-vapor lamp is a gas-discharge lamp that uses sodium in an excited state to produce light.