ОНЧ излучение, суточные периоды, рентгеновское излучение, спектральный анализ, Солнце, галактика, group, VLF radiation, daily periods, X-radiation, spectral analysis, Sun, galaxy, Science

Spectral analysis of electromagnetic noise radiation in the VLF range at three fixed frequencies for the period from 1997 to 2015 have been carried out. Periodograms with diurnal components associated with the periods of the Earth rotation relatively the Sun and the stars have been obtained. It has been shown that the Sun х-radiation and the galaxy х-radiation affect daily variations of VLF radiation.