Study of the Spectral Response of Sky Quality Measurers

Abstract

The aim of this project is to study the spectral response of two sky quality measurers, SQM and TESS-W, and compare the instrumental sky brightness obtained by these two photometers with the sky brightness obtained synthetically using its spectral response and night sky spectra from Montsec (Lleida), measured by SAND-4B spectrometer. We are going to analyze the difference between the magnitude measured by SQM and TESS-W to study if the atmospheric emission (airglow) at red wavelengths triggers the difference between the sky brightness measured by the previously mentioned instruments at the Montsec