A Treatise on Astronomical Spectroscopy is a translated work by Julius Scheiner, originally published in 1894 under the title Die Spectralanalyse Der Gestirne. The book is a comprehensive guide to the study of astronomical spectroscopy, which is the analysis of the light emitted by celestial bodies. Scheiner covers various topics related to spectroscopy, including the principles of spectral analysis, the construction and use of spectroscopes, and the interpretation of spectral lines. He also discusses the application of spectroscopy to the study of stars, planets, and other astronomical objects, as well as its use in determining the chemical composition and physical properties of these objects. The book is written in a clear and concise style, making it accessible to both professional astronomers and students of astronomy. Overall, A Treatise on Astronomical Spectroscopy is a valuable resource for anyone interested in the field of astronomical spectroscopy.This Book Is In English.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.