| Risultati della ricerca nelle immagini - "B-Ring" |
Saturn-PIA08983.jpgSpokes!53 visiteCaption NASA:"The Cassini Spacecraft spies multiple spokes in Saturn's outer B-Ring. The precise origin and evolution of these transient features continue to provide Ring Scientists with intriguing puzzles to solve.
Most of these spokes are about 4000 Km long; the 2 near the bottom of the scene are about 1000 Km (about 600 miles) wide.
This view looks toward the unilluminated side of the Rings from about 8° above the Ring-Plane.
The image was taken in visible green light with the Cassini spacecraft narrow-angle camera on June 2, 2007. The view was acquired at a distance of approx. 2,2 MKM (such as about 1,4 MMs) from Saturn.
Image scale is roughly 13 Km (about 8 miles) per pixel".MareKromium
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Saturn-PIA10539-M.jpgSpokes (natural - but enhanced - colors; credits: Lunar Explorer Italia)66 visiteCaption NASA:"A large group of Spokes emerges from Saturn's shadow in this image taken of the morning side of the Rings. Such groupings may hold clues to the manner in which these features are formed.
The image was taken in visible light with the Cassini spacecraft wide-angle camera on Nov. 2, 2008 at a distance of approx. 869.000 Km (such as about 540.000 miles) from Saturn and at a Phase angle of 37°.
Image scale is approx. 48 Km (such about 30 miles) per pixel".MareKromium
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The Rings-PIA07610.jpgClose look at the "B-Ring"54 visiteOriginal caption:"This detailed view of Saturn's mid-B ring shows intriguing structure, the cause of which has yet to be explained by ring scientists. The image shows a radial location located between approx. 107.200 to 115.700 Km (about 66.600 to 71.900 miles) from Saturn.
The image was taken with the Cassini spacecraft narrow-angle camera on Sept. 3, 2005, at a distance of approx. 1,1 MKM (roughly 700.000 miles) from Saturn using a filter sensitive to wavelengths of infrared light centered at 752 nnmts. The image scale is 6 Km (about 4 miles) per pixel".
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The Rings-PIA08036~0.jpgThe Rings, 26 Taurus and reddish Hydrogen54 visiteThis image is a false-color ultraviolet view of Saturn's B-Ring (center) and A-Ring (right), separated by a large gap known as the Cassini Division.
It shows a bright horizontal streak, created by a series of time lapse images involving a star named 26 Taurus.
The image was made over a 9-hour period as the star drifted behind the Rings. The opacity of the outer A-Ring is most pronounced on its inner edge, indicating more ring debris is present there. The Encke Gap, much smaller than the Cassini Division, is visible near the outer edge of the A-Ring. The B-Ring is significantly more opaque than the A-Ring, indicating a greater density of ring material when imaged from above.
The sky behind the Rings glows red in the ultraviolet wavelengths from the hydrogen gas that fills the Solar System.
The images were processed from data taken by the ultraviolet imaging spectrograph aboard the Cassini spacecraft in May 2005.
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The_Rings-PIA10408.jpg"Spiral Density Wave" in the B-Ring (MULTISPECTRUM; credits: Lunexit)81 visiteCaption NASA:"This High-Resolution view shows, at left, a Spiral Density Wave (SDW) in Saturn's inner B-Ring. A SDW is a spiral-shaped massing of particles that tightly winds many times around the Planet. These waves decrease in wavelength with increasing distance from the Planet.
Scientists use images like this one to understand the mass of the Rings and the collisional dynamics of the Ring Particles.
The view looks toward the sunlit side of the Rings from about 50° below the Ring-Plane. The image was taken in visible light with the Cassini Spacecraft narrow-angle camera on May 10, 2008. The view was obtained at a distance of approx. 279.000 Km (sich as about 173.000 miles) from Saturn.
Image scale is roughly 1 Km (0,6 mile) per pixel".MareKromium
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The_Rings-PIA10525.jpgSpokes in the "B-Ring" (possible True Colors; credits: Lunar Explorer Italia)65 visiteCaption NASA:"Broad, dark spokes in the B-Ring are clearly seen in this image of Saturn's Rings. The spokes are finally becoming quite common, as they were during the Voyager flybys. These observations and others like it seem to support the idea that the spokes become most prominent near the Saturnian Equinox. Also visible in this image is the moon Janus off beyond the Rings.
The image was taken in visible light with the Cassini Spacecraft wide-angle camera on Oct. 19, 2008 at a distance of approx. 1,1 MKM (such as about 628.000 miles) from Saturn and at a Phase Angle of 29°.
Image scale is roughly 57 Km (about 35 miles) per pixel".MareKromium
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The_Rings-PIA10550.jpgA "Ghost" in the B-Ring (True - but strongly enhanced - Colors; credits: Lunar Explorer Italia)88 visiteCaption NASA:"The ghostly features in Saturn's B-Ring called "Spokes" are making an appearance again as the Cassini Spacecraft continues its tour of the Saturn System.
These dusty features on the Rings are often wedge-shaped, as this one is, with the inner portions of the Spoke being wider than the outer portions due to electromagnetic effects on the dust particles.
The image was taken in Visible Light with the Cassini Spacecraft wide-angle camera on Nov. 26, 2008 at a distance of approximately 922,000 kilometers (573,000 miles) from Saturn and at a Sun-Saturn-Spacecraft, or Phase, Angle of 39°.
Image scale is roughly 52 Km (about 32 miles) per pixel".MareKromium
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