Also captured in this image are two of Saturn's moons: Enceladus and Tethys. Both appear on the left side of the planet, below the rings. Enceladus is closer to the rings; Tethys is below and to the left.

This view looks toward the non-illuminated side of the rings from about 19 degrees below the ring plane.
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Link: A Splendor Seldom Seen (NASA Cassini Saturn Mission Images)