Half-Hours with the Stars: A Plain and Easy Guide to the Knowledge of the Constellations, Showing, in Twelve Maps, the Position for the United States of the Principal Star Groups Night After Night Throughout the Year; With Introduction and a Separate Expl
Excerpt from Half-Hours With the Stars: A Plain and Easy Guide to the Knowledge of the Constellations, Showing, in Twelve Maps, the Position for the United States of the Principal Star Groups Night After Night Throughout the Year; With Introduction and a Separate Explanation of Each Map, True F But although this illustration serves to indicate the nature Of the maps, the actual mode of using them is more convenient. Let it first be noted that properly speaking the maps have neither top, bottom, nor sides. Each map may be ...
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Excerpt from Half-Hours With the Stars: A Plain and Easy Guide to the Knowledge of the Constellations, Showing, in Twelve Maps, the Position for the United States of the Principal Star Groups Night After Night Throughout the Year; With Introduction and a Separate Explanation of Each Map, True F But although this illustration serves to indicate the nature Of the maps, the actual mode of using them is more convenient. Let it first be noted that properly speaking the maps have neither top, bottom, nor sides. Each map may be held with any part of the circumference downward then the centre of the map is to be looked upon as the top for that part of the circumference. The portion Of the map lying beneath the centre represents the portion of the sky lying between the point overhead and a certain part of the horizon - the part in fact corresponding to the particular part of the circum ference which is turned downwards. Thus if on any night we wish to learn what are the stars towards the north, we look for the map corresponding to that night. At the hour named the stars toward the north will be those shown between the centre Of the map and the top; and, of course. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... 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.
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Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.