Observing the Sky from 40N
by Roberto Mura
Publisher: Wikibooks 2010
Number of pages: 86
This atlas contains a set of 24 maps regulated to the latitude of 40N, similar to those of many important cities in the northern hemisphere, as well as information about some double and variable stars and almost 160 deep sky objects. 8 selected areas of the sky suitable for binoculars are displayed in separated and detailed maps, followed by a short description of those galactic regions.
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by Thomas Dick - Seeley, Burnside, and Seeley
The work is intended for the information of general readers, especially for those who have acquired a relish for astronomical pursuits, and who wish to become acquainted with the instruments by which celestial observations are made.
by Garrett Putman Serviss - D. Appleton & co.
In the pages that follow, the author has endeavored to encourage the study of the heavenly bodies by pointing out some of the interesting and marvelous phenomena of the universe that are visible with little or no assistance from optical instruments.
- Springfield Telescope Makers Inc
There are almost as many ways to make mirrors and telescopes as there are telescope makers. On these pages, however, we have tried to stick with simple and proven techniques that are most appropriate for novice mirror and telescope makers.
The Caldwell Catalogue is an astronomical catalog of 109 star clusters, nebulae, and galaxies for observation by amateur astronomers. The list was compiled by Sir Patrick Caldwell-Moore, as a complement to the Messier Catalogue.