https://bib.cozmix.cloud/files/original/4b8c4cdf20d49923b6b68bdb1d516470.jpg 7f2e5725cddbbd89027605eb5f8361e8 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Waarnemen Boek Een boek. ISBN International Standard Book Number 933346549 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context WAA0140 Creator An entity primarily responsible for making the resource Roger N. Clark Title A name given to the resource Visual Astronomy of the Deep Sky Publisher An entity responsible for making the resource available Sky Publishing Corporation Date A point or period of time associated with an event in the lifecycle of the resource 01 June, 1990 Description An account of the resource Want to see spiral arms of M33, M51 or M101... in a 10 inch scope? Confused about why certain not-too-dim "faint fuzzies" cannot be seen at all- even at low power under clear, dark conditions? Do you enjoy lots of graphs, charts, equations and technical writing? Then this book is for you. <p> Roger Nelson Clark's book gives the Serious observer of the deep sky the skills necessary to milk the most information out of every last photon of light when observing visually. He gives an extremely complete recounting of studies of the human visual system, most specifically in terms of its ability to adapt to dark conditions and perceive subtle differences in contrast, and its acuity under low-light conditions.</p> <p> He asserts that there is, statistically, not a very wide range of light perception ability in the human population (amounsgt those without obvious visual disease) and that techniques he outlines in the book will help any committed student of the sky see more details.</p> Language A language of the resource nothing Format The file format, physical medium, or dimensions of the resource Hardcover