path traveled by land in second in the general movement of the center of gravity of the whole of our planetary system, known only approximately, as only approximately known and the direction in which the movement now.But it is quite possible that the speed of this movement is determined only approximately in relation to the movement of the surrounding stars, will be greater than assumed so far, and that in the future with very precise measurements can notice the influence aberratsii.Zemlya and Moon in ancient times ...
In the study of the universe in the 18th century had a powerful influence, and with one hand, the further development of the teachings of Newton, on the other hand, improvement of the telescope and other measuring devices of this kind.In a sense, it was the work of the epigones, since their foundation and have been working on the results of the creative spirit of the two preceding centuries.But in the 18th century, among people who have devoted themselves to further development of the new theory, and this improvement and application of new methods of investigation, people were quite outstanding;are particularly remarkable D'Alembert, Lagrange, Lezhaidr, Lailas, Euler, Lambert, theorists, and William Herschel, as an observer opens a lot in the heavenly spaces.In those days people knew that the Moon is in the zodiac, the Moon in Aquarius, Moon in Virgo ...
task of the theory in this period was to test Newton's doctrine of universal gravitation with the help of anumerous and more accurate measurements made over the movements of celestial bodies, to prove the correctness of this doctrine or facilitate its further development, as well as easier and more accurate calculation of the movements of celestial bodies for a variety of practical purposes.
Among these practical purposes, as mentioned above, the first place belongs to the navigation, then it should be noted the need for such calculations for the calendar, as well as to more accurately determine the time and space that has become increasingly necessary, as the development of means of communication.
For the purposes of navigation had to be very precise and, moreover, embraces a large amount of time calculating the various provisions of the moon in the firmament.
Earth and the Moon in ancient times