Nature, Volume 93Sir Norman Lockyer Macmillan Journals Limited, 1914 - Electronic journals |
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Page 231
... appears from these results that a large majority of the stars of Classes F , G , and K have nearly , if not quite , as small parallaxes and proper - motions as those of Classes A and M , though they are not quite so remote as the stars ...
... appears from these results that a large majority of the stars of Classes F , G , and K have nearly , if not quite , as small parallaxes and proper - motions as those of Classes A and M , though they are not quite so remote as the stars ...
Page 252
... appears as the horizontal coordinate , while the vertical one is the absolute magnitude , accord- ing to Kapteyn's definition- that is , the visual magnitude which each star would appear to have if it should be brought up to a standard ...
... appears as the horizontal coordinate , while the vertical one is the absolute magnitude , accord- ing to Kapteyn's definition- that is , the visual magnitude which each star would appear to have if it should be brought up to a standard ...
Page 255
... appears to be very nearly a linear function of the spectral class ( if B is regarded as 1 , A as 2 , etc. ) The columns headed " formula " in Table V. give the values calculated from the expressions M = 1.4m . + 2.1m . ( Sp . - A ) for ...
... appears to be very nearly a linear function of the spectral class ( if B is regarded as 1 , A as 2 , etc. ) The columns headed " formula " in Table V. give the values calculated from the expressions M = 1.4m . + 2.1m . ( Sp . - A ) for ...
Contents
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