Engineering Physics Annotation << Back TEMPORARY VARIATIONS OF LUNAR SEISMICITY AND SOLAR ACTIVITY A.B. KHRUSTALEV The moon has a complex internal structure and is a good astrophysical and cosmogonic detector. The only satellite of the Earth is in the field of gravitational forces of the Earth and the Sun and is exposed to various radiation streams and meteoroid streams. Seismic data obtained by the American Apollo missions - 11, 12, 14, 15, 16, 17 from 1969 to 1978, allow us to find the main factors affecting lunar seismicity and determine the internal structure of the moon. The Nakamura CATALOG processing methods developed in this work made it possible to study the tidal 13÷14 daily and minute ranges of periods. The results obtained in this paper can be used to verify existing models of the Moon and refine them. The Apollo 11 -12, -14, -15, -16, -17 expeditions created a network of seismic stations that worked for a little over eight years and recorded more than 12,000 (12556) moonquakes. A unique material was obtained, in the form of lunar seismograms, reflecting the seismicity of the moon (Nakamura Catalog). Keywords: Moon, Sun, seismograms, spectral analysis, periodicity, internal structure. DOI: 10.25791/infizik.04.2020.1131 Pp. 39-50.