Computation Forms for the Class in Practical Astronomy at the Observatory of Columbia University, New York (Classic Reprint)

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Excerpt from Computation Forms for the Class in Practical Astronomy at the Observatory of Columbia University, New YorkAberration is the apparent change in a star's position caused by the progressive motion of light combined with the motion of the earth itself.Annual is the effect produced by the earth's motion around the sun.Diurnal is the effect produced by the earth's motion on its axis.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.