In this work, we present a numerical model of the night sky brightness in the optical range called SkyMapMod, intended for ground-based astrophysical experiments that rely on the detection of optical radiation (such as fluorescence and gamma-ray telescopes, and Cherenkov detectors of extensive air showers). The model predicts the photon flux spectrum from a selected region of the sky for a specified location and observation time. It accounts for stars and diffuse galactic and extragalactic sources, atmospheric airglow, zodiacal light, and light from solar system planets. The propagation of light through the atmosphere is also modeled.
42.68.-w Atmospheric and ocean optics
$^1$1 Physics Faculty of M.V. Lomonosov Moscow State University\
$^2$Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics
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