ScienceJohn Michels (Journalist) 1947 |
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Стр. 202
... stars . In the first two decades Barnard and Burnham contributed large numbers of observations to this field , and Burnham laid a foundation for all modern work on double stars by issuing his two - part General catalogue of double stars ...
... stars . In the first two decades Barnard and Burnham contributed large numbers of observations to this field , and Burnham laid a foundation for all modern work on double stars by issuing his two - part General catalogue of double stars ...
Стр. 207
... stars Simple mean v = 23.38 ... from 61 stars The difference is very considerable and cannot well be attri- buted to accidental error alone . It would seem that in the direction in which we are moving we are approaching the stars less ...
... stars Simple mean v = 23.38 ... from 61 stars The difference is very considerable and cannot well be attri- buted to accidental error alone . It would seem that in the direction in which we are moving we are approaching the stars less ...
Стр. 208
... stars in the line of sight . The spectra of the stars were flanked on both sides by the spectra of a laboratory source , such as that of the electric spark between iron or titanium terminals . The photographs could then be placed in a ...
... stars in the line of sight . The spectra of the stars were flanked on both sides by the spectra of a laboratory source , such as that of the electric spark between iron or titanium terminals . The photographs could then be placed in a ...
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Grim J M 354 430 502 | 10 |
Sci 105 | 19 |
Plasma Accelerator Factor and Purified | 22 |
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