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Jupiter systems[edit]

"A definite color gradient is observed [in the small inner satellites of Jupiter], with the satellites closer to Jupiter being redder: the mean violet/green ratio (0.42/0.56 μm) decreases from Thebe to Metis. This ratio also is lower for the trailing sides of Thebe and Amalthea than for their leading sides."[1]


  1. P.C. Thomas, J.A. Burns, L. Rossier, D. Simonelli, J. Veverka, C.R. Chapman, K. Klaasen, T.V. Johnson, M.J.S. Belton, Galileo Solid State Imaging Team (September 1998). "The Small Inner Satellites of Jupiter". Icarus 135 (1): 360-71. doi:10.1006/icar.1998.5976. http://www.sciencedirect.com/science/article/pii/S0019103598959760. Retrieved 2012-06-01.