http://www.sjunijournals.ge/index.php/AA/issue/feedAstronomy & Astrophysics (CAUCASUS)2025-09-12T17:13:52+00:00Open Journal Systems<p>The journal “<strong>Astronomy & Astrophysics (Caucasus)</strong>” is an international, scientific peer-reviewed electronic publication. The purpose of the journal is to provide the scientific society with the information about the latest researches in astronomy and astrophysics. The technical parameters of the articles submitted to the “<strong>Astronomy & Astrophysics (Caucasus)</strong>” are similar to those of the articles published in the US leading international scientific journals. Only the original astronomical and astrophysical articles after with a positive review will be published in the journal.</p> <p>The journal also publishes papers of international scientific conferences (forums, symposiums, etc.), reports of scientific expeditions and reviews.</p>http://www.sjunijournals.ge/index.php/AA/article/view/199PHYSICAL CHARACTERISTICS OF THE SURFACES OF JUPITER'S GALILEAN MOONS2025-09-12T17:13:52+00:00Revaz Chigladzerevazchigladze@yahoo.com<p>Since 1981, the E. Kharadze Georgian National Astrophysical Observatory has been conducting polarimetric (P) and photometric (M) observations of Jupiter's Galilean moons with telescopes of different diameters (40-cm and 125-cm), as well as polarimeter Automatic Scanning Electron Polarimeter (ASEP)-78, the latest generation photometer with polarimeter and modern light receiver Santana Barbara Instrument Group (SBIG). As it turns out from the analysis of the observed material, parameters P and M depend on: α, the phase angle of the moon (satellite); L, the orbital latitude of the moon (satellite); λ, the wavelength, and t, the period of observation, i.e., , and similarly: Based on the analysis of the obtained results, we get: The magnitude of the degree of polarization of Jupiter's Galilean moons near the opposition significantly differs from zero. Europa appears to have the most uniform surface, and Callisto has the least. Time variations are most characteristic of Io, which confirms the presence of volcanic activity on its surface. Based on the observed materials, it can be seen that the intensity of light reflected from the front hemisphere of the first three moons: Io, Europa, and Ganymede, is less than the intensity of light reflected from the rear hemisphere, while the picture with Callisto is opposite. The paper provides an explanation of this fact.</p>2024-12-25T00:00:00+00:00Copyright (c) 2024 Astronomy & Astrophysics (CAUCASUS)