Download or read book Astronomical and Meteorological Observations Made at the Radcliffe Observatory, Oxford, Vol. 19 written by Radcliffe Observatory and published by Forgotten Books. This book was released on 2016-12-07 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Astronomical and Meteorological Observations Made at the Radcliffe Observatory, Oxford, Vol. 19: In the Year 1858 Stars which do not occur, or which have not been identified in any of the Catalogues mentioned above, are designated by their approximate N. P. D. Given in general to the nearest minute. The fourth column shews the number of wires over which a star has been observed when the observation was incomplete. The wires are the same as those which have been in use since the year I 843, excepting that, for observing by galvanic contact, two additional ones were inserted in the year 1 858, half way between the centre wire and each of the adjacent wires. They originally consisted of seven fixed vertical, 14' apart, and two horizontal wires, 30 apart; and of two wires moveable by separate micrometers for observation of the error of collimation. 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.