Tethys, Hyperion and Prometheus

Three of Saturn's moons captured by Cassini
Three of Saturn’s moons (Tethys, Hyperion and Prometheus) captured by Cassini

A rare feat from the Cassini spacecraft as it captured three of Saturn’s moons (and its mystical rings) in this one frame. The largest of the visible moons in this picture is Tethys whose muti-terrain surface can be barely made out at this resolution.  To the left of Tethys is the smaller and distant moon Hyperion. It has a surface full of closely packed and deeply etched pits and is an irregularly shaped moon of Saturn. Lastly we can barely see the tiny moon Prometheus (only 86 kilometers across) as it lies at Saturn’s F ring. This visible light picture was taken by Cassini’s narrow-angle camera while the spacecraft was around 1.9 million kilometers from Tethys.

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