Laboratory Astronomy

Автор: Robert Wheeler Willson
Издательство: Ginn & Company
Страниц: 208
Год: 1905
Размер: 6,67 МБ

THE subjects treated in elementary text-books of astronomy which are most difficult and discouraging to the beginner are those which deal with the diurnal motion of the heavens and the apparent motions of the sun, moon, and planets among the stars. A clear conception of these fundamental facts is, however, necessary to a proper understanding of many of the striking phenomena to which the study of astronomy owes its hold upon the intellect and the imagination...