On the base of a plane model of translatory-rotary motion of the above-mentioned elastic bodies on elliptical orbits the main variations in the coefficients C20, C22 and S22 with periods that are a multiple of the orbit period have been obtained and evaluated. Dynamic effects in resonant ...
The Rotational Period of the Sun Using the Doppler Shift of the Hα Spectral Line (Abstract) The influence of internal dissipation on the rotational motion of the Earth in the gravitational field of the Sun and Moon is studied within the model of M... R Gill 被引量: 0发表: 2012年 HMS...
(2006). A regular period for Saturn’s magnetic field that may track its internal rotation. Nature 441: 62–64 Article ADS Google Scholar Gulbis A.A.S., Elliot J.L., Person M.J., Adams E.R., Babcock B.A., Emilio M., Gangestad J.W., Kern S.D., Kramer E.A., Osip D...
Planetary-period oscillations in Saturn's magnetosphere This thesis is concerned with the study of near-planetary rotation period oscillationsin Saturn's magnetic field. Similar oscillations are present in a variety of othermagnetospheric phenomena, most notably kilometre-wavelength radio emi... Andrews,...
rotation axis over the Earth's surface, combined with wandering of the continents and associated changes in ocean currents (note that we are talking here about the onset of ice ages 鈥 the period of the 100,000 year cycles of ice build-up and decay is determined by astronomical causes)....
During the spring algae bloom, the system is phosphorus-limited, whereas during the period of summer maximum productivity, the system is nitrogen-limited. Another visualization tool available in the system is an “orthogonal” slicing plane—orthogonal with respect to how the data are stored. The ...
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...
Earth is warmer than Moon, because Earth rotates faster. “The Blue Marble” is a famous photograph of the Earth taken on December 7, 1972, by the crew of the Apollo 17 spacecraft en route to the Moon at a distance of about 29,400 kilometres (18,300 mi). It shows Africa, Antarctica...
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...
For most of the simulations, we observe that the sublimation-induced torques produce significant changes in the rotational parameters of a 67P/C–G-like comet. Typical rates of change for the spin period from the rendezvous up to the end of the nominal mission range from 0.001 to 0.05 h ...