Bruce Murray Space Image Library

Saturn with Tethys and Mimas' shadow

Saturn with Tethys and Mimas' shadow
Saturn with Tethys and Mimas' shadow This image shows Saturn with Tethys below the rings and a shadow cast on Saturn's disk by Mimas. NASA / JPL / SSI / Alson Wong

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.

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