Nature, Količina 103Sir Norman Lockyer Macmillan Journals Limited, 1919 |
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Stran 26
... star , or of a group of stars , in the galactic system is probably not less than 1010 years nearly a thousand times longer than the interval during which the Helmholtz - Kelvin contraction , ac- cording to current interpretation , can ...
... star , or of a group of stars , in the galactic system is probably not less than 1010 years nearly a thousand times longer than the interval during which the Helmholtz - Kelvin contraction , ac- cording to current interpretation , can ...
Stran 29
... stars on every fine evening ; and among numerous other arrangements was one for recording the rapid changes in brightness of short - period variables by intermittent exposures at short intervals . The number of photographs of the ...
... stars on every fine evening ; and among numerous other arrangements was one for recording the rapid changes in brightness of short - period variables by intermittent exposures at short intervals . The number of photographs of the ...
Stran 484
... stars , a generalised temperature curve might be placed before us by considering the number of stars in the various groups , for the reason that the longer a star re- mained at about the same tempera- ture , the larger would be the ...
... stars , a generalised temperature curve might be placed before us by considering the number of stars in the various groups , for the reason that the longer a star re- mained at about the same tempera- ture , the larger would be the ...
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