Synopsis
Excerpt from The Character of the Star Image in Spectrographic Work
These experiments conclusively prove that the abnormal width of spectra and trails in photographic light is not due to aberrations in the spectroscope nor to atmospheric disturbances, and clearly point to aberrations in the condensing svstem as the cause of the observed effects. A short summary of the experimental data will render this more evident. The theoretical diameter of the central disk, or rather of the first dark ring, for visual light a 5600, is 0374, for photographic light, X 4340, is 0357. The actual width of visual spectra and trails is from 1 to or one and one-half to three times the theoretical diameter. The actual width of photographic spectra and trails is from 3 to or five to eight times the theoretical diameter.
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The Character of the Star Image in Spectrographic Work (Classic Reprint)
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Paperback. Condition: New. Print on Demand. This book presents findings from an investigation concerning the star image as produced by the combination of objective and correcting lenses when used in radial velocity work. The author provides a description of the equipment used at the Dominion Observatory specifically, and presents a series of experiments on the size and form of the star image produced by the telescope, in an effort to understand the effects of observed aberrations and offer suggestions for improving existing conditions. The research presented has significant implications for the field of radial velocity work, and astronomers and astrophysicists will find this book a valuable resource in optimizing their research methods. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Seller Inventory # 9781528019026_0
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Condition: New. KlappentextrnrnExcerpt from The Character of the Star Image in Spectrographic WorkThese experiments conclusively prove that the abnormal width of spectra and trails in photographic light is not due to aberrations in the spectroscope nor . Seller Inventory # 2149105798
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