Nature, Količina 93Sir Norman Lockyer Macmillan Journals Limited, 1914 |
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Stran 255
... stars with directly measured parallaxes and the stars in clusters , but the latter appear , with remarkable consistency , to be about 0-8m . brighter than the former . This seems at first sight very puzzling , but it is un- doubtedly ...
... stars with directly measured parallaxes and the stars in clusters , but the latter appear , with remarkable consistency , to be about 0-8m . brighter than the former . This seems at first sight very puzzling , but it is un- doubtedly ...
Stran 296
... STARS . THE THE number of stars visible to the naked eye on a clear night , in the whole sky , is roughly 5,000 a very moderate total indeed , in spite of the universal custom of using the number of the stars , in common with that of ...
... STARS . THE THE number of stars visible to the naked eye on a clear night , in the whole sky , is roughly 5,000 a very moderate total indeed , in spite of the universal custom of using the number of the stars , in common with that of ...
Stran 600
... stars and the number of very bright ones . The figures give a general indica- tion of the density of the stars in space and of their intrinsic brightness , and serve to direct attention to the fact that there are many stars much less ...
... stars and the number of very bright ones . The figures give a general indica- tion of the density of the stars in space and of their intrinsic brightness , and serve to direct attention to the fact that there are many stars much less ...
Vsebina
Appleyard Direct Measurement of the Napierian Base 231 | 24 |
Archbold T R Device for filling Ore Sacks | 50 |
Physics 428 | 127 |
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absolute magnitude acid æther appears April Astronomical atomic atomic weight balloon brightness British cent chemical chemistry College colour committee contains density described discussion edition effect electric electrons Engineering expedition experiments fact Funafuti Geological giant stars given gives heat Hermann et Fils illustrated important increase industry interesting investigation J. J. Thomson laboratory large number larvæ lectures lines London magnetic magnitude March matter means measures ment metals Meteorological method motion Museum National Physical Laboratory nature observations Observatory obtained origin paper parallax period photographs physical plants plates present Price problems produced Prof published radiation radium recent rocks ROYAL INSTITUTION Royal Society schools scientific sodium amide solar species spectra spectral classes spectrum stars of Class surface temperature theory tion tube University velocity volume W. H. Bragg