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Science 25 January 1980:
Vol. 207. no. 4429, pp. 431 - 434
DOI: 10.1126/science.207.4429.431
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Articles

Ultraviolet Photometer Observations of the Saturnian System

D. L. JUDGE 1, F. -M. WU 1, and R. W. CARLSON 2

1 Department of Physics, University of Southern California, Los Angeles 90007
2 Jet Propulsion Laboratory, Pasadena, California 91103

Several interesting cloud and atmospheric features of the Saturn system have been observed by the long-wavelength channel of the two-channel ultraviolet photometer aboard the Pioneer Saturn spacecraft. Reported are observations of the most obvious features, including a Titan-associated cloud, a ring cloud, and the variation of atmospheric emission across Saturn's disk. The long-wavelength data for Titan suggest that a cloud of atomic hydrogen extends at least 5 Saturn radii along its orbit and about 1.5 Saturn radii vertically. A ring cloud, thought to be atomic hydrogen, has also been observed by the long-wavelength channel of the photometer; it shows significant enhancement in the vicinity of the B ring. Finally, spatially resolved observations of Saturn's disk show significant latitudinal variation. Possible explanations of the variation include aurora or limb brightening.

Submitted on December 3, 1979


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Extreme Ultraviolet Observations from Voyager 1 Encounter with Saturn.
A. L. BROADFOOT, B. R. SANDEL, D. E. SHEMANSKY, J. B. HOLBERG, G. R. SMITH, D. F. STROBEL, J. C. McCONNELL, S. KUMAR, D. M. HUNTEN, S. K. ATREYA, et al. (1981)
Science 212, 206-211
   Abstract »    PDF »
Planetary Radio Astronomy Observations from Voyager 1 Near Saturn.
J. W. WARWICK, J. B. PEARCE, D. R. EVANS, T. D. CARR, J. J. SCHAUBLE, J. K. ALEXANDER, M. L. KAISER, M. D. DESCH, M. PEDERSEN, A. LECACHEUX, et al. (1981)
Science 212, 239-243
   Abstract »    PDF »


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