Nature, Količina 93Sir Norman Lockyer Macmillan Journals Limited, 1914 |
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Zadetki 1–3 od 39
Stran 253
... brightness of which there can be no doubt , but the spectrum of which , though apparently of Class A , is rendered very difficult of observation by the proximity of its far brighter primary . ( 2 ) On the other hand , there are many red ...
... brightness of which there can be no doubt , but the spectrum of which , though apparently of Class A , is rendered very difficult of observation by the proximity of its far brighter primary . ( 2 ) On the other hand , there are many red ...
Stran 258
... brightness , except that those of Class B are brighter than the rest ; the dwarf stars diminish in brightness by about two magnitudes for each spectral class ; the two series overlap up to Class G and separate at Class K , and so on ...
... brightness , except that those of Class B are brighter than the rest ; the dwarf stars diminish in brightness by about two magnitudes for each spectral class ; the two series overlap up to Class G and separate at Class K , and so on ...
Stran 282
... brightness of the reddest giant stars ; and these stars of low density show a very marked preference for the " later " spectral classes , while practically all the stars of " earlier ” type are far denser . are We can answer the third ...
... brightness of the reddest giant stars ; and these stars of low density show a very marked preference for the " later " spectral classes , while practically all the stars of " earlier ” type are far denser . are We can answer the third ...
Vsebina
Brauner Prof B New Units in Aerology 136 | 9 |
Brown Prof W Change of Length in Nickel Wire 232 | 17 |
Appleyard Direct Measurement of the Napierian Base 231 | 24 |
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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