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About this product
Product Identifiers
PublisherForgotten Books
ISBN-101332955002
ISBN-139781332955008
eBay Product ID (ePID)246707059
Product Key Features
Book TitleApplication of Dicyanin to the Photography of Stellar Spectra (Classic Reprint)
Number of Pages30 Pages
LanguageEnglish
TopicAstronomy
Publication Year2016
IllustratorYes
GenreScience
AuthorPaul W. Merrill
FormatTrade Paperback
Dimensions
Item Height0.1 in
Item Weight1.9 Oz
Item Length9 in
Item Width6 in
Additional Product Features
Intended AudienceTrade
SynopsisExcerpt from Application of Dicyanin to the Photography of Stellar Spectra T o the eye a continuous spectrum is usually terminated at the red end, not by the lack of energy but by the ineffectiveness of the longer waves in producing vision. 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., Excerpt from Application of Dicyanin to the Photography of Stellar Spectra Between February 4 and March I, 1917, 67 stellar spectrograms were secured on 14 nights. Those of interest are included in the following list: Columns one to seven require no explanation. In the eighth column, Exposure, c indicates that the observation was interfered with by clouds; in the ninth column, Prism, P denotes the 24-inch 6 prism; D denotes the 9 by 11 inch 15 prism; in the tenth column, Emulsion, HS indicates Hammer Special, 27 indicates Seed 27; in the last column, Dye, D and DA signify dicyanin and dicyanin A, respectively. 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."
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