Nature, Količina 93Sir Norman Lockyer Macmillan Journals Limited, 1914 |
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Stran 282
... magnitude . In similar fashion , we find that the mean absolute magnitude of fifty - two visual pairs of spectra Oe5 to Bo , reduced to the sun's mass , is 04 , while that of twelve eclipsing binaries of similar spectrum , reduced to ...
... magnitude . In similar fashion , we find that the mean absolute magnitude of fifty - two visual pairs of spectra Oe5 to Bo , reduced to the sun's mass , is 04 , while that of twelve eclipsing binaries of similar spectrum , reduced to ...
Stran 296
... magnitudes , the brightest being called first magnitude stars , and the faintest visible being termed of the sixth magnitude . Pogson placed this classification on a scientific basis , so that it could be extended to telescopic stars of ...
... magnitudes , the brightest being called first magnitude stars , and the faintest visible being termed of the sixth magnitude . Pogson placed this classification on a scientific basis , so that it could be extended to telescopic stars of ...
Stran 297
... magnitude . On this account the rate of increase in the number of stars per magnitude will be nearly constant all over the sky , so that this rate may conveniently be studied from a table giving the numbers of stars in the whole sky ...
... magnitude . On this account the rate of increase in the number of stars per magnitude will be nearly constant all over the sky , so that this rate may conveniently be studied from a table giving the numbers of stars in the whole sky ...
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