Saturn with Tethys and Mimas' shadow
I created two separate RGB images, one aligned on Saturn's limb and the other aligned on Tethys and Mimas' shadow. I then pasted the Tethys-Mimas layer on top of the first layer in Photoshop and used a Layer Mask to hide the second layer. Next, I used the Brush tool to erase part of the mask to reveal the aligned images of Tethys and Mimas' shadow.
Original image data dated on or about June 15, 2007.
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