Excerpt from The Draper Catalogue of Stellar Spectra: Photographed With the 8-Inch Bache Telescope as Part of the Henry Draper Memorial To show any lines are included in the present catalogue. The classification of the faint stars is therefore somewhat uncertain. When the number measuring the brightness in the third column of Table II. Exceeds it is difficult to classify the spectrum with certainty. In expressing the wave-lengths of the lines of the spectrum the millionth of a millimetre has been adopted as a unit, ...
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Excerpt from The Draper Catalogue of Stellar Spectra: Photographed With the 8-Inch Bache Telescope as Part of the Henry Draper Memorial To show any lines are included in the present catalogue. The classification of the faint stars is therefore somewhat uncertain. When the number measuring the brightness in the third column of Table II. Exceeds it is difficult to classify the spectrum with certainty. In expressing the wave-lengths of the lines of the spectrum the millionth of a millimetre has been adopted as a unit, following the general usage in Germany. This unit is preferred to the ten millionth of a milli metre adopted as a unit by Angstr'om, and many other physicists. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... 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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