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Rings of Saturn
The rings of Saturn are the planetary rings around the planet Saturn, which can be seen with a small telescope. They consist of many small particles, ranging in size from microscopic to the size of a bus (or bigger) that form clumps that move around Saturn. The particles in the rings are made almost entirely of water ice, with just a small amount of dust and other chemicals. There are some gaps in the rings. The moon Pan causes the gap called the "Encke gap" in Saturn's A ring. The Cassini Division, discovered by Giovanni Domenico Cassini, is a gap between the A ring and the B ring. It is a product of orbital resonance.
- "The Rings of Saturn". Csep10.phys.utk.edu. 1995-11-21. http://csep10.phys.utk.edu/astr161/lect/saturn/rings.html. Retrieved 2012-01-20.
- "Cassini Solstice Mission: Pan". Saturn.jpl.nasa.gov. 2004-07-01. http://saturn.jpl.nasa.gov/science/moons/pan/. Retrieved 2012-01-20.