Report Of The Superintendent Of The United States Naval Observatory For The Fiscal Year Ending June 30 1904 Classic Reprint PDF Download

Excerpt from Report of the Superintendent of the U. S. Naval Observatory: For the Year Ending 1891 June 30 The transit of Mercury over the sun's disk, which occurred on May 9, 1891, was observed with the 96-inch equatorial by Prof. Frisby. The transit was only partial in the United States. On the Pacific coast the sun was two or three hours high at the time of the first and second contacts; it had set in most places on the Atlantic coast before the first contact, and in Washington it was only about ten minutes high. The afternoon of the day was quite cloudy, but just before the time of tran sit the clouds broke away and the first and second contacts were quite successfully ob served; but, on account of the unfavorable circumstances and the sun's low altitude, the observations can not be very valuable, although the first indentation on the sun's limb was recorded on the chronograph. 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.