Excerpt from An Introduction to Astronomy: Designed as a Text-Book for the Use of Students in College The sun, planets, satellites, and comets constitute the solar system, which is so called because the sun is the principal body belonging to it, and controls the movements of all the others. The fixed stars are the bodies situated at vast distances out side of the solar system, and which, on account of that distance, exhibit little or no change of position with respect to each other. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.