Analysis of Photoelectric Occultations and Development of a Digital Model of the Lunar Libration Zone

Abstract

Abstract: One of the priority tasks of modern astronomy is the observation and study of transient celestial processes, which also concerns photoelectric observations of lunar occultations of stars. These measurements provide unique and important material both for determining the star diameters from a diffraction curve analysis regarding the change in the brightness of the star occulted by the Moon and for developing a model of the lunar libration zone. This paper is focused on building a digital model of isohypses (DMI) characterizing the position of 40 000 selenocentric radius vectors depending on the position of the lunar limb