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Information × Registration Number 0213U001687, 0110U001035 , R & D reports Title Telescopic investigations of asteroids, Kuiper-bodies and comets popup.stage_title Head Lupishko Dmitro, Registration Date 23-01-2013 Organization Kharkov National University named after V.N. Karazin popup.description2 During 287 nights the observations of 74 main-belt asteroids, near-Earth asteroids (NEAs), Jupiter Trojans, three comets and one Kuiper-belt object (90482) Orcus, which is a binary system, were carried out. The lightcurves and magnitudes of all these asteroids have been obtained; the compositional types, rotation periods, BVRI-color indexes, diameters and albedos of them have been determined. Fourteen asteroids, which are or suspected to be binary systems, have been investigated in the frame of international program and among them the NEA 8373 Stephengould has been discovered as a binary system. It was shown that in comet 103P/Hartley atmosphere the gas component is dominated over the dust one. The influence of YORP-effect (that is, effect of influence of solar radiation) on axis rotation of NEAs have been determined, what is of great fundamental importance. For the first time it was theoretically indicated the existence of tangential component of the YORP-effect, which is formed due to irregular heating of surface structures in decimetric scale by solar light. The photometric model of asteroid have been improved and applied for modeling of shapes and surfaces of some asteroids. The new data on optical types of surfaces have been obtained and classification of 19 Kuiper-belt bodies has been carried out using the measurements of their color indexes at one of the biggest telescope in the world – 8.2 m of South European Observatory in Chile. Obtained results are of great interest from point of view both fundamental science and the "Asteroid hazard" problem. The obtained lightcurves, rotation parameters and other data are included in the international data-bases "Asteroid Photometric Catalogue" and "Planetary Data System". Product Description popup.authors Бельська І. Величко Ф. Голубаєв О. Круглий Ю. Куліш Ф. Лупішко Д. Мітрохіна В. Слюсарев І. Телеусова І. Чеча В. Чорний В. Шевченко В. popup.nrat_date 2020-04-02 Close