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Information × Registration Number 0305U003373, 0104U000665 , R & D reports Title Astrophysical research of the planets' surfaces and atmospheres according to the data of photometry and polarimetry popup.stage_title Фотометрія та поляриметрія Місяця та Юпітера Head Korokhin V, Registration Date 25-03-2005 Organization Kharkov national university named after V.N. Karazin popup.description2 Objects of investigations are the lunar surface and Jovian atmosphere. Goal of the work is research of optical properties of planets atmospheres and surfaces. Methods of investigation are photometrical and polarimetrical, using theoretical analysis of data, theoretical and digital modeling the processes of light scattering on planets surfaces and in atmospheres. New photopolarimetrical observations of the Moon at great phase angles (143° and 155°) were carried out. These observations are continuing a program of photometrical and polarimetrical studying of lunar surface at Astronomical institute of KhNU. A procedure for correcting the data of integral photometry of the Moon by Lane and Irvine (1964-1965) has been developed. On the basis of the corrected data, it is shown, that it is impossible to describe the phase dependence of equigonal albedo at phase angles 15°-120° using the same exponential function . Also it is shown, that at small phase angles (15°-50°) decreasing the m with wavelength growthis observed, and for 50°-120° m is practically constant and is equal about 0.7. It means that at relatively small phase angles phase dependence are formed substantially by microrelief and at great ones - by mesorelief. A model for describing the observed phase dependences of brightness and linear polarization degree of the lunar surface at moderate phase angles has been developed. It takes into account both light scattering on regolith microparticles and effects, which appear in macroscale at light scattering by rough surface. An estimation of deposits of Fresnel's reflection and scattering on microparticles to radiation, reflected by the surface, has been made (20% and 80% correspondingly). The 22-years series of Jupiter photopolarimetric observations was continued. Observations of 2004 give value of the north-south asymmetry of linear polarization degree 0.85±0.038%. Researching of the Jupiter polarization phase dependence shows that in the limits of observations accuracy there is no phase dependence both at the central part of Jupiter disk and at the polar regions for blue and red ranges of spectrum. The preliminary results of researching the influence of the Sun on physical processes at Jupiter stratosphere indicate that solar cosmic rays influence on north-south asymmetry of linear polarization degree of light reflected by Jupiter. A development of principally new version of the IRIS system have been started. Feature of this new version is working under the Microsoft .NET platform. This makes IRIS really multi platform software (functioning not only under MS Windows), provides the possibility of constructing distributed data processing systems, using a lot of programming languages for development and using most modern programming technologies. Implementation of the formulas of the tilted perspective projection for planets of arbitrary shape as a class library for the new version of IRIS system has been realized. These classes allow user to perform transformation of coordinates for the objects of any shape which has been described by user. Product Description popup.authors popup.nrat_date 2020-04-02 Close