Annual Report of the Board of Regents of the Smithsonian InstitutionThe Institution, 1921 |
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Page 126
... stars . Velocities vary with spectral type . Class B stars : Average speeds 8 miles per second . Class A stars : Average speeds 14 miles per second . Class F stars : Average speeds 18 miles per second . Class G stars : Average speeds 19 ...
... stars . Velocities vary with spectral type . Class B stars : Average speeds 8 miles per second . Class A stars : Average speeds 14 miles per second . Class F stars : Average speeds 18 miles per second . Class G stars : Average speeds 19 ...
Page 127
... star density ? A relationship between two classes of objects may be one of avoid- ance just as logically as one of contiguity . It has been argued that the absolute avoidance which the spirals manifest for the galaxy of the stars shows ...
... star density ? A relationship between two classes of objects may be one of avoid- ance just as logically as one of contiguity . It has been argued that the absolute avoidance which the spirals manifest for the galaxy of the stars shows ...
Page 155
... stars Nos . 3 and 4 relative to 5 on one side and 6 and 10 on the other . These are all bright stars , and in this respect their images are more comparable than are the images of the fainter stars . The measures of these stars are given ...
... stars Nos . 3 and 4 relative to 5 on one side and 6 and 10 on the other . These are all bright stars , and in this respect their images are more comparable than are the images of the fainter stars . The measures of these stars are given ...
Contents
Bureau of American Ethnology | 17 |
Report on the United States National Museum | 25 |
EXECUTIVE COMMITTEE AND REGENTS | 100 |
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