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Saturn's one large moon, Titan, and several of the ringed planet's medium-sized moons. Earth's Moon is also shown for size comparison.
Click on image for full size
Original Windows to the Universe artwork by Randy Russell using images courtesy NASA.

Large and Medium-sized Moons of Saturn

Saturn has moons. Many of those are tiny chunks of rock or ice only a few kilometers (miles) across. One of Saturn's moons, Titan, is much larger than the rest and is amongst the largest moons in our entire Solar System.

Midway in size between Titan and the many tiny moonlets are several medium-sized moons. The image on this page shows Titan and the mid-sized moons of Saturn. They are, in order from largest to smallest: Rhea, Iapetus, Dione, Tethys, Enceladus, Mimas and Hyperion. Two more moons, Phoebe and Janus, are visible in the larger version of this image (click on the small image on this page to see the larger image). The picture also shows Earth's Moon for size comparison.

Last modified June 7, 2004 by Randy Russell.

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A Comparison of Some Major Moons, and the Earth's Moon

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Rhea was discovered by G. Cassini in 1672. Rhea is the 5th farthest moon from Saturn, with a standoff distance of 527,040 km. It is one of the icy moons, similar to the Galilean satellites. Rhea is about...more


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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA