Science, Том 18American Association for the Advancement of Science, 1891 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. 86
... stars of the cluster give more than a hundred and fifty thousand times as much light as the smaller stars of the cluster . In the photographs of the Pleiades cluster we have evi- dence of a range of at least fifteen magnitudes , which ...
... stars of the cluster give more than a hundred and fifty thousand times as much light as the smaller stars of the cluster . In the photographs of the Pleiades cluster we have evi- dence of a range of at least fifteen magnitudes , which ...
Стр. 230
... stars like Sirius , through stars more or less solar in character , to stars with banded spectra , which divide them- selves into two apparently independent groups , according as the stronger edge of the bands is towards the red or the ...
... stars like Sirius , through stars more or less solar in character , to stars with banded spectra , which divide them- selves into two apparently independent groups , according as the stronger edge of the bands is towards the red or the ...
Стр. 232
... stars from a simple com- parison of their eye - magnitudes . We should expect the white stars to be , as a class , less dense than the stars in the solar stage . As great mass might bring in the solar type of spectrum at a relatively ...
... stars from a simple com- parison of their eye - magnitudes . We should expect the white stars to be , as a class , less dense than the stars in the solar stage . As great mass might bring in the solar type of spectrum at a relatively ...
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