Rutherfurd photographs of stars surrounding [eta], 27, 34, [gamma], [nu] and 71 Cygni.
| Autor principal: | |
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| Format: | Llibre |
| Idioma: | English |
| Publicat: |
New York
Rutherfurd Stuyvesant Fund
c1910.
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| Col·lecció: | Contributions from the Observatory of Columbia University-- no. 28
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| Matèries: |