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The Spectra of the Major Planets

Naturevolume 79page42 (1908) | Download Citation



AS the result of his experiments, Mr. V. M. Slipher succeeded in 1907 in rendering some plates (Seed, 23) sensitive far into the red. This was done by bathing them before exposure in a solution of pinacyanol, pinaverdol, dicyanin, alcohol, and water. With them he photographed the spectra of all the major planets and, for comparison purposes, that of our moon.


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