TY - RPRT AU - Zamorano Calvo, Jaime AU - Sánchez de Miguel, Alejandro AU - Nievas Rosillo, Mireia AU - Tapia Ayuga, Carlos PY - 2014 UR - https://hdl.handle.net/20.500.14352/41603 AB - 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... LA - eng KW - Sky brightness KW - Light pollution TI - NixNox procedure to build Night Sky Brightness maps from SQM photometers observations TY - technical report ER -