Dynamic effects in resonant rotation of the Moon, Mercury and Titan considered as an unchangeable non-spherical bodies are studied on the basis of two simple models: firstly, the plane motion on the unperturbed elliptic orbit; secondly, the rotation of Titan on the precessing circular orbit. ...
An accurate model of the rotation of the Moon, constructed by numerical integration, has been presented in a previous paper. All direct perturbations capable of producing at least 10-4seconds of arc on the Moon’s rotational motion have been included, and the physical librations resulting from ...
1.Confirmation of the Relationship between EW(Li) and Rotational Period for WTTS;WTTS锂线等值宽度与自转周期关系的验证 英文短句/例句 1.Venus rotates very slowly with the result that its cycle of rotation reaches as long as 243 days of the Earth.金星的自转极慢,以致金星的自转周期长达二百四十三...
For a given number of rotations in a given time period, the angular velocity of an object is the same whether the object is rotating about its own axis or rotating about an axis some distance away. Consider a point that is rotating about an axis that passes through the point and that ...
Context. Phobos is in synchronous spin-orbit resonance around Mars, like our Moon around the Earth. As a consequence, the rotational period of Phobos is equal in average to its orbital period. The variations of its rotational motion are described by oscillations, called physical librations, which...
It had to be corrected for the smooth surface planets and moons (Mercury, Earth, Moon, Mars, Europa, Ganymede) their effective temperatures (Te) because of their surfaces havinga strong specular reflection constituent. When corrected the(Te)into(Te.correct)the Planet Surface ROTATIONAL WARMING PHE...
Displacements of the axis of rotation with respect to the fixed stars (changes in which the whole planet is moving rigidly as one unit) are mainly due to external forces, notably the gravitational interactions between the Earth and the Sun, the Moon and the other planets of the solar system...
The importance of the theory of periodic solutions for studying the rotational motions of synchronous satellite is demonstrated. Explicit formulas are obtained for three periods of resonant moon librations. The calculated period values are in agreement with observational data. Compact formulas are obtained...
The rate of herbage depletion during a period of occupation in a rotational grazing system is dependent on daily intake of animals which in turn is a function of the quality and the quantity of the forage available. When herbage is abundant, daily intake per head increases as nutritive value...
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