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Georgia Journal of Science

Abstract

The writer carried out brightness measurements of Saturn and its rings with four different color filters. The selected normalized mag­nitudes of Saturn + rings for a ring tilt angle of 14° are B(1,0) = -8.25 ± 0.03, V(1,0) = -9.36 ± 0.03, R(1,0) = -10.01 ± 0.04 and 1(1,0) -10.16 ± 0.04. The opposition surge values for Saturn+ rings on Feb. 11, 2007 (solar phase angle = 0.15°) were 0.19 and 0.06 magnitudes for the Band V filters respectively. The writer concludes that the B-V and V-R color indexes of Saturn+ rings do not change much when the solar phase angle drops from 6° to 1°. The rings become a little bluer though as the solar phase angle drops from 1° to 0° due to the larger opposition surge in blue light.

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