| Risultati della ricerca nelle immagini - "A-Ring" |
Rings-PIA03556.jpg"Clumps" in the A-Ring55 visiteOriginal NASA caption:"The left image is a false-color view of Saturn's A-Ring from the Ultraviolet Imaging Spectrograph aboard Cassini.
The A-Ring is the bluest in the center, where the gravitational clumps are the largest. The thickest black band in the Ring is the "Encke-Gap" while the thin black band further to the right is the "Keeler-Gap".
The right image is a computer simulation about 150 mt (about 490 feet) across illustrating a "clumpy region" of particles in the A-Ring. And, there and that is the 'real surprise'...The particles are moving counterclockwise, from bottom to top!".
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The Rings-PIA07616.jpgThe "Cassini" Division (close-up)78 visiteOriginal caption:"The outer reaches of Saturn's Cassini Division merges with the inner A-Ring (at the right) in a Region that is rich in structure.
The smooth Region leading up to the A-Ring grows brighter from the left to the right (known as a "ramp" to Ring).
This Region contains a faint "double-wave" structure that is a density feature caused by the influence of the co-orbital moons Janus and Epimetheus. Scientists are interested in observing the evolution of this density wave as the moons swap places in their orbits every few years, presumably resulting in a change in the perturbations that cause this feature.
This image was taken in visible light with the Cassini narrow-angle camera on Sept. 5, 2005, at a distance of approx. 441.000 Km (about 274.000 miles) from Saturn. The image scale is 2 Km (a little more than 1 mile) per pixel".
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The_Rings-AtoG-PIA10505.jpgThe Rings (natural colors; credits: Lunexit)56 visitenessun commentoMareKromium
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The_Rings-N00123873.jpgAnother UFO in the Space of Saturn: the UFO has diappeared (natural colors; credits: Lunexit)68 visitenessun commentoMareKromium
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The_Rings-PIA10419.jpgOn the edge... (MULTISPECTRUM-2; credits: Lunexit)68 visiteCaption NASA:"This detailed look at Saturn's A-Ring captures Daphnis in the narrow Keeler Gap. The small moon creates complex wave patterns in the gap edges that Cassini scientists are working to understand. To the right of the Keeler Gap, the outer A-Ring edge is significantly brighter than the rest of the Ring.
This view looks toward the unilluminated side of the Rings, from about 32° above the Ring-Plane. Daphnis is about 8 Km (approx. 5 miles) wide.
The image was taken in visible light with the Cassini Spacecraft narrow-angle camera on May 31, 2008. The view was acquired at a distance of approx. 1 MKM (about 629.000 miles) from Saturn.
Image scale is roughly 6 Km (about 4 miles) per pixel".MareKromium
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