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Georgia Journal of Science

Abstract

The writer made 45 brightness measurements of Saturn + rings between Nov. 28, 2007 and April 24, 2008. The selected B(1,0), V(1,0), R(1,0) and I(1,0) values for Saturn + rings for b = 7° are: -8.10 ± 0.01, -9.14 ± 0.01, -9.77 ± 0.01 and -9.87 ± 0.02 respectively. The selected solar phase angle coefficients (in magnitudes/degree) are: 0.041 ± 0.006, 0.034 ± 0.005, 0.022 ± 0.007 and 0.027 ± 0.007 respectively. It is concluded that the angle between the ring plane and the Sun (B') has as much affect on the results as the angle between the ring plane and the Earth (B). As a result of this, a new parameter, b, is defined as b = (B' × B)1/2. Saturn’s opposition surge on Feb. 24 was 0.02 magnitudes in the V-filter.

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