%0 Report %A Zamorano Calvo, Jaime %A Sánchez de Miguel, Alejandro %A Nievas Rosillo, Mireia %A Tapia Ayuga, Carlos %T NixNox procedure to build Night Sky Brightness maps from SQM photometers observations %D 2014 %U https://hdl.handle.net/20.500.14352/41603 %X The NixNox procedure to build all-sky maps of the nocturnal night sky brightness using SQM photometers is described. Astronomers belonging to amateur associations in Spain are using this observational method to obtain data of their preferred sites of observation to characterize the astronomical quality of the sky and the sources of light pollution. %~