Results 21 to 30 of about 45,419 (270)
DYNAMICAL EVOLUTION NEAR-PARABOLIC COMETS TO HALLEY-TYPE ORBITS
Odessa Astronomical Publications, 2017 The capture of comet from the near parabolic flux of the Oort cloud to Halley-type orbits (P < 200 yr, perihelion distanses q < 1,5 AU, and Tisserand parametr T < 2) is investigated Two types of capture into Halley-type orbits are found.
E. E. Biryukov
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Celestial mechanics of elastic bodies [PDF]
, 2006 We construct time independent configurations of two gravitating elastic bodies. These configurations either correspond to the two bodies moving in a circular orbit around their center of mass or strictly static configurations.Comment: 16 pages, 2 figures,
Bernd G. Schmidt +10 more
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Odessa Astronomical Publications, 2017 The batch of the programs for celestial mechanics are elaborated in order to obtain the ephemeris of the Sun, the Moon, the planets and their satellites, the asteroids, the comets, the binary stars, the variables stars, determination of the conditions of
V. V. Mikhalchuk
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Philosophia Scientiæ, 2023 After 1850, Laplacian or Amperean molecular physics found itself in competition with other approaches involving thermodynamics and kinetic theories. Henri Poincaré is one of the very few French scientists to have made a significant contribution to the ...
João Príncipe
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The Spin–Spin Problem in Celestial Mechanics
Journal of Nonlinear Science, 2022 AbstractWe study the dynamics of two homogeneous rigid ellipsoids subject to their mutual gravitational influence. We assume that the spin axis of each ellipsoid coincides with its shortest physical axis and is perpendicular to the orbital plane. Due to such assumptions, the problem is planar and depends on particular parameters of the ellipsoids, most
Celletti A., Gimeno J., Misquero M.
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Symmetries in central-force problems [PDF]
Serbian Astronomical Journal, 2003 The two-body problem in central fields (reducible to a central-force problem) models a lot of concrete astronomical situations. The corresponding vector fields (in Cartesian and polar coordinates, extended via collision-blow-up and infinity-blow-up ...
Mioc V., Barbosu M.
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Editorial for the Special Issue “Relativistic Astrophysics”
Universe, 2022 Relativistic Astrophysics is the branch of astrophysics that studies astronomical phenomena and celestial bodies, for which classical mechanics and Newton’s law of gravitation are inapplicable to creation of suitable models and we have to generalize ...
Francesco De Paolis +2 more
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Ephemerides and Celestial Mechanics [PDF]
Highlights of Astronomy, 1986 When solving some abstract problems in mechanics related to the dynamics of bodies and systems, the notion of an inertial frame of reference is introduced in an apparently clear and natural way by simply drawing its coordinate axes and then paying no further attention to the system of reference which is then taken for granted.
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Open Astronomy, 2015 A new approach to determining the solar galactocentric distance, R0, from the geometry of spiral-arm segments is proposed. Geometric aspects of the problem are analyzed and a simplified three-point method for estimating R0 from objects in a spiral ...
Nikiforov I. I., Veselova A. V.
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The Relative Inertiality - The Relative Mechanical Movement of Bodies in Outer Space [PDF]
INCAS BulletinEven though classical mechanics states that it is not possible to find an inertial reference frame, relative measurements are used to determine the mechanical behaviour of celestial bodies with very small dimensions compared to the distances between them.
Sorin Stefan RADNEF
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