Catalogue of Stars Observed at the United States Naval Observatory

Excerpt from Catalogue of Stars Observed at the United States Naval Observatory: During the Years 1845 to 1871 The Declinations published in this Catalogue were observed with the Mural Circle, the Meridian Circle, and the Prime Vertical transit-instrument. Equal weight is given to the observations of the Mural Circle and Prime Vertical transit-instrument, and half weight to the observations of the Meridian Circle. It is not considered necessary to describe here the method of observing, as that has been done at length in the volume for 1846 and those of subsequent years. 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.