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Titan's Purple Halo
Cassini took this beautiful image of Titan with its orange surface shining against the purple halo of its atmosphere. The photograph was made by using separate blue, green and red spectral filters and then combining this with an ultraviolet image. This image was taken by Cassini's narrow-angle camera on the May 5, 2005, at a distance of approximately 1.4 million kilometers (900,000 miles) from Titan.
Fraser Cain