Перегляд за Автор "Troianskyi, V. V."

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    Dynamics of the asteroid rings (10199) Chariklo
    (Одеський національний університет імені І. І. Мечникова, 2016) Troianskyi, V. V.; Bazyey, Oleksandr A.; Троянський, В. В.; Базєй, Олександр Анатолійович; Троянский, В. В.; Базей, Александр Анатолиевич
    In 2014 it was reported on opening two rings around asteroid (10199) Chariklo (Braga-Ribas F., et al., 2014, Nature, 508, 72–75) and it became the fifth object of the Solar system known to have ring system, after Jupiter, Saturn, Uranus and Neptune. The main component of the system is the biggest Centaur. This work considers the erosion time of rings in the asteroid system (10199) Chariklo, that is due to a number of effects. Also, we have calculated the mass and period of rotation of the asteroid’s shepherd satellite.
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    Effect of non-sphericity of gravitational field of the asteroid on the its satellites orbits evolution
    (Одеський національний університет імені І. І. Мечникова, 2015) Troianskyi, V. V.
    Lately it has become possible to sufficiently precise definition of the physical and geometric characteristics of asteroid systems using radar observations (http://echo.jpl.nasa.gov/~lance/binary.neas.html), which allowed calculating the asymmetry of the massive component of double and multiple asteroids for studying the dynamics of motion of their satellites.
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    First reported observation of asteroids 2017 SV39, 2017 ST39, and 2017 TS7
    (Одеський національний університет імені І. І. Мечникова, 2023) Simon, A.; Troianskyi, V. V.
    In this paper, we show the result of the joint use of the AZT-8 telescope, the Astrometrica software, and the Väisälä method. The paper considers in detail several of the discovered (rediscovered) asteroids: SV39, 2017 ST39, and 2017 TS7 from a long list of small bodies of the Solar System.
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    METHOD FOR CALCULATING ORBITS OF NEAR–EARTH ASTEROIDS OBSERVED WITH TELESCOPE OMT-800
    (Astroprint, 2014) Troianskyi, V. V.; Baziei, Oleksandr A.; Kashuba, V. I.; Zhukov, V. V.; Korzhavin, S. A.
    One of the frame processing techniques, as well as an example of further use of the obtained results to calculate an asteroid’s orbit are given in the present paper. The application of frame combination method to improve the telescope’s limiting magnitude is described.
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    Physical properties of “hot population” objects in the Kuiper belt
    (Одеський національний університет імені І. І. Мечникова, 2022) Okhotko, H.; Troianskyi, V. V.; Bazyey, O.
    Most planetesimals formed at distances of 15 - 30 a.u. were gravitationally ejected from the Solar system as a result of the migration of the giant planets, but a small part remained, captured by Jupiter and the Kuiper belt. As a result, we can now observe such a variety, in terms of physical and dynamic characteristics, in the Trojan asteroids of Jupiter and in the Kuiper belt. Planetesimals captured by the Kuiper Belt are a "hot population" now. The term "hot" does not refer to the temperature of bodies, but characterizes the orbit of objects. ~120,000 objects larger than 100 km. in diameter are known in the "hot population". This population is characterized by an orbital inclination greater than 5 degrees and a large eccentricity. The main task of the work, based on physical and dynamic characteristics, is to search for the same properties Trojan asteroids of Jupiter and objects from the "hot population" of the Kuiper belt, which supposedly migrated earlier from the region of the original orbit of Neptune. The data from ground-based observations and space missions is used in the work.
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    Resonances in asteroid systems
    (Одеський національний університет імені І. І. Мечникова, 2016) Troianskyi, V. V.
    Today the following types of resonances in the rotation of celestial bodies in the solar system are known, namely orbital, spin-orbit and spin-spin resonances. This paper presents our computations of these types of resonances for the known binary and multiple asteroid systems.
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    Resonances in Saturn’s system
    (Одеський національний університет імені І. І. Мечникова, 2017) Voitko, А. S.; Troianskyi, V. V.
    One of principal tasks of celestial mechanics is study of motion of natural satellites of planets. In this work, the authors have examined resonances in system of satellites and rings of Saturn. They have showed presence of resonances between all the regular satellites and satellites – rings.
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    THE QUANTITY AND QUALITY OF OBSERVATIONAL NIGHTS MONITORED WITH USING THE ASTRONOMICAL INSTRUMENTS AT THE SUBURBAN OBSERVATION STATIONS OF ASTRONOMICAL OBSERVATORY OF ODESSA NATIONAL UNIVERSITY
    (Astroprint, 2015) Kashuba, S. G.; Gorbanev, Juri M.; Andrievsky, Serhii M.; Marsakova, V. I.; Troianskyi, V. V.; Андрієвський, Сергій Михайлович; Андриевский, Сергей Михайлович
    The Astronomical Observatory of Odessa National University named after I.I. Mechnikov is one of the four astronomical observatories which exist in classical universities. The Observatory has a main office in the T.G. Shevchenko Park that located near historical center of Odessa. The Observatory also has several observation stations: in the Odessa suburb Mayaki and Kryzhanovka villages.
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    THE SOLAR-RADIATION PRESSURE EFFECTS ON THE ORBITAL EVOLUTION OF ASTEROID MOONS
    (Astroprint, 2015) Troianskyi, V. V.; Baziei, Oleksandr A.
    In the theory of motion, disturbances are divided into gravitational and non-gravitational ones. In this paper, we discuss the effects of solar-radiation pressure on the orbital evolution of asteroid moons. It is known from the laws of physics that the smaller an object is the more pressure is exerted on it by solar radiation. That is the reason why asteroid moons with their small sizes are exposed to the solar-radiation pressure so much.