Authors: Franklin F A, Colombo G, and Cook A F
Year: 1971
Title: A dynamical model for the radial structure of Saturn's rings. II
Journal: Icarus
Volume: 15
Pages: 80-92
Keywords: Saturn, ring, faint, theory, analytical, observation, position, data
Abstract: This paper attempts to present a critical assessment of the evidence bearing on the possible existence of a tenth (S10) and an eleventh (S11) satellite of Saturn. For S10 there are two candidates; Themis and Janus. An inspection of the original plates dispels any possibility favoring the presence of Themis. Definitive statements concerning the other two satellites are more difficult to make, but it is shown quantitatively that existing observations are unable to provide unique orbits - the usual criterion for existence. However, a considerably stronger case can be made for Janus than for S11. The safest conclusion seems to be that the region between ring A and Mimas may well contain one, two, or even many satellites that should be carefully looked for during the ring-plane passages in 1979/80. Observation data for S10 and S11 given at dates: 29 Oct 1966 - 4 obs., 15 - 18 Dec 1966 - 17 obs.
%F: AA(Harvard College Observatory and Smithsonian Astrophysical Observatory, Center for Astrophysics, Cambridge, Mass.)
Bibliogaphic Code: 1971Icar...15...80F
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