Saturn's Rings: Identification of Water Frost

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Science  06 Mar 1970:
Vol. 167, Issue 3923, pp. 1372-1373
DOI: 10.1126/science.167.3923.1372


A recently published infrared spectrum of Saturn's rings resembles our laboratory spectra of water frosts. Furthermore, there are discrepancies between the ring spectrum and ammonia frost spectra in the 2- to 2.5-µ region. These discrepancies render unlikely a reported ideti tification of ammonia frost in the ring spectrum.

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