Science, Том 58American Association for the Advancement of Science, 1923 Since Jan. 1901 the official proceedings and most of the papers of the American Association for the Advancement of Science have been included in Science. |
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Стр. 169
... stars appear , the brightest stars of the cluster are , on the average , three times as bright , photographically , as the variables , Shapley has com- puted the distances from us of the principal globular clusters . Measuring the ...
... stars appear , the brightest stars of the cluster are , on the average , three times as bright , photographically , as the variables , Shapley has com- puted the distances from us of the principal globular clusters . Measuring the ...
Стр. 170
... stars are only 1.7 as numerous as those of the fifteenth magnitude . " This steadily decreasing ratio , " says Hale , " is probably due to an actual thin- ning out of the stars towards the boundaries of the stellar universe , as the ...
... stars are only 1.7 as numerous as those of the fifteenth magnitude . " This steadily decreasing ratio , " says Hale , " is probably due to an actual thin- ning out of the stars towards the boundaries of the stellar universe , as the ...
Стр. 385
... stars and hence their " parallactic " displacement . These observations do not lead to the distance of any particular star , be- cause the star's own motion is a factor in its dis- placement ; but , assuming as a first approximation ...
... stars and hence their " parallactic " displacement . These observations do not lead to the distance of any particular star , be- cause the star's own motion is a factor in its dis- placement ; but , assuming as a first approximation ...
Содержание
Acidity Subsoil A P KELLEY 36 | 13 |
Quotations 14 32 50 92 109 121 142 162 181 206 | 14 |
VOL LVIII | 20 |
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