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Pan
- One moonlet, Pan, actually orbits inside the A ring in a 330-kilometer-wide (200-mile) gap called the Encke Gap.
science.nasa.gov/resource/saturns-rings-2/
People also ask
Is there a moon in the a ring of Saturn?
Did Saturn have a ring?
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Did Saturn's ring come from a crash of 2 moons?
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Could a shattered moon have sprayed ice particles around Saturn's rings?
There are two main theories regarding the origin of Saturn's inner rings. A theory originally proposed by Édouard Roche in the 19th century is that the rings were once a moon of Saturn (named Veritas, after a Roman goddess who hid in a well).
Visualize the position of Saturn's Rings and identify Saturn' Moons in real time or at any given time in the past or in the future.
Rings of Saturn - NASA. NASA’s Perseverance Rover Looks Back While Climbing Slippery Slope. NASA Successfully Integrates Coronagraph for Roman Space Telescope. We Are All Made of Cells: Space and the Immune System. International SWOT Satellite Spots Planet-Rumbling Greenland Tsunami.
Dec 12, 2010 · Saturn’s majestic rings are the remnants of a long-vanished moon that was stripped of its icy outer layer before its rocky heart plunged into the planet, a new theory proposes.
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- Part 8 - Bibliography
One of Saturn's most prominent features is the set of rings thatencircle the planet. In the past few years, we've discovered that ALLof the major planets (Jupiter, Saturn, Uranus, and Neptune) have ringsystems, and they're all different. Saturn has the largest and mostspectacular system of rings, though -- the others aren't as easy to see. From loo...
Last time I covered some basic facts about the rings: 1. They're not solid, but rather are composed of chunks of water ice,ranging from the size of an automobile or small building down to the aninch or smaller (including some microscopic dust). 2. The rings are very thin -- maybe just 100 yards or so in thickness. 3. We see the rings at different a...
SHEPHERDING MOONS
A theory was proposed in 1979 that the narrow rings might be due towhat are called "shepherding moons". It turns out that when you havea small moon orbiting Saturn just outside one of the rings, thegravitational pull of the moon on the ring particles will try to pushthe ring particles into smaller orbits; it's as if the moon "repels"the ring particles so make them orbit closer to Saturn. Similarly,if there is a small moon just inside one of the rings, the gravitationalpull of the moon on the...
EMBEDDED MOONS
The wider Encke gap is caused by the gravity from a moon called Pan.Pan orbits Saturn within the Encke gap; its gravity causes ring"inside" particles (closer to Saturn) to be pushed into smaller orbits,and "outside particles (farther from Saturn) to be pushed into largerorbits, resulting in the Encke gap. I've attached a picture taken byCassini that shows the Encke gap (the larger of the two gaps, on theright). You can see the moon Pan inside the gap. To the left in the same picture, you can...
PICTURE OF ALL THE RINGS
Above:Backlit picture of Saturn, as seen from the Cassini spacecraft. Above:Backlit picture of Saturn, with captions.
SPOKES
When the Cassini spacecraft arrived at Saturn in 2004, the spokes were nowhere tobe found. None of the early pictures returned by Cassini showed these spokefeatures, so they seem to have disappeared since Voyager 2 visited Saturn.We've since seen them re-appear, though. There's still a lot we don't understand about the spokes. What we have learnedis that they are made of very small dust particles, less than one micron(1/1000 millimeter) across. It's believed that the spoke particles have aneg...
SIZES OF THE RINGS
Diameter (distance across a ring): We typically measure distances inSaturn radii, where 1 Saturn radius is 60,268 kilometers = 37,449miles. (For comparison, the radius of the Earth is about 6378kilometers = 3963 miles.) In the first set of notes I sent you, I gaveyou the inner and outer radii of each ring, in Saturn radii. If youmultiply the outer radius by 2, that will tell you the diameter of eachring, in Saturn radii. Multiply that number by 60,268 to get the ringdiameter in kilometers, or...
RING WAVES
There are two types of waves: "spiral density waves", and "spiral bending waves"
GENERAL
1. Beatty, J. Kelly, Collins, Carolyn, and Chaiken, Andrew. (1999) The New Solar System(4th ed.) (Cambridge University Press, Cambridge, UK.) 2. Burns, Joseph A., Hamilton, Douglas P., and Showalter, Mark R. (2002) "Bejeweled Worlds". Scientific American, February 2002, pp. 64-73. 3. Elliot, James, and Kerr, Richard. (1984) Rings. (MIT Press, Cambridge, Massachusetts.) 4. Lunine, Jonathan I. "Saturn at Last!" (2004) Scientific American, June 2004, pp. 56-63.
ADVANCED
1. Esposito, Larry. (2006) Planetary Rings. (Cambridge University Press, Cambridge, UK.) 2. Fridman, A.M., and Gorkavyi, N.N. (1994) Physics of Planetary Rings. (Springer, Berlin.) 3. Gehrels, Tom, and Matthews, Mildred Shapley (Eds.). (1984) Saturn. (University of Arizona Press, Tucson.) 4. Greenberg, Richard, and Brahic, André (Eds.). (1984) Planetary Rings. (University of Arizona Press, Tucson.) 5. Miner, Ellis D., Wessen, Randii R., and Cuzzi, Jeffrey N. (2007) Planetary Ring Systems. (Pr...
Nov 8, 2017 · Only one (Titan) is large; the rest are small bodies. Only 13 of the moons are larger than 30 miles (50 km). The gravity of these moons affects the structure of Saturn's rings, but also offer ...
There are different theories about how Saturn’s rings formed, but the most widely accepted one is that they are the remnants of a moon or a comet that was shattered by Saturn’s gravity. As the moon or the comet approached Saturn, it was torn apart by the planet’s tidal forces, which are stronger near the equator than near the poles.
