Best of AOP - Solar System

Saturn

The sixth (and some would say prettiest) planet in the solar system. The planet is mostly hydrogen and helium, but the rings are made of little chunks of ice. The dark line in the rings is a gap called the Cassini Division, swept clear of ice chunks by the periodic gravitational tugging of a moon, Mimas, which is in orbital resonance with anything in that gap.

Last Updated: 26-Jun-2014

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About This Image

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Equipment

20in RC Optical Systems telescope Operating at f/8.1

Philips ToUcam Pro II webcam

Minimum credit line: Matt Anderson and Julie Hammonds/Flynn Haase/NOAO/AURA/NSF