Detection of Lyman α Emission from the Saturnian Disk and from the Ring System

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Science  19 Aug 1977:
Vol. 197, Issue 4305, pp. 755-757
DOI: 10.1126/science.197.4305.755-a


A rocket-borne spectrograph detected H I Lyman α emission from the disk of Saturn and from the vicinity of the planet. The signal is consistent with an emission brightness of 700 rayleighs for the disk and 200 rayleighs for the vicinity of Saturn. The emission from the vicinity of the planet may be due to a hydrogen atmosphere associated with the saturnian ring system.

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