Excerpt from The Observatory, Vol. 17 Introduction. Tm: present Companion closely resembles that of last year. As in former years, we have to thank Mr. Denning for revising the Meteor Notes, and Mr. Maw for kindly supplying a number of observations of Double Stars. M. Loewy has again favoured us with advance-proofs from which we have obtained the Variable Star Ephemerides. The occultations and phenomena of Jupiter's Satellites are from the 'nautical Almanac' the diagrams and Ephemerides of the Satellites of the other planets from the 'american Ephemeris.' No Ephemeris of Jupiter's sth satellite based 011 recent observations being yet available, this will be given, when possible, in the monthly numbers. The Fraction of the Year is the fraction which has elapsed at mean noon of the particular day. The Moon's declination is given for mean midnight. The Longitude of the Moon's Terminator is given for mean midnight; the letters M. And E. Signifying morning and evening - that is, that the Sun is rising or setting on that particular longitude of the Moon's surface; the sign indicates longitudes reckoned from the central meridian in a westward direction. The angles of disappearance and re appearance for occultations are reckoned from the true north in the direction N. E. S. W as for double stars. Greenwich Mean Time is used in all cases, and the astronomical day is reckoned from noon to noen as in previous 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.