| Piú votate - Saturn: the "Ringed Beauty" and His Moons |
Japetus-PIA08125.jpgJapetus57 visiteSunlight strikes the terminator (the boundary between day and night) Region on Saturn's moon Iapetus at nearly horizontal angles, making visible the vertical relief of many features.
This view is centered on terrain in the Southern Hemisphere of Iapetus. Lit terrain visible here is on the moon's Leading Hemisphere.
In this image, a large, central-peaked crater is notable at the boundary between the dark material in Cassini Regio and the brighter material on the Trailing Hemisphere.
The image was taken in visible light with the Cassini spacecraft narrow-angle camera on Jan. 22, 2006, at a distance of approx. 1,3 MKM (such as about 800.000 miles) from Iapetus and at a Sun-Iapetus-spacecraft, or phase, angle of 67°. Resolution in the original image was 8 Km (about 5 miles) per pixel. The image has been magnified by a factor of two and contrast-enhanced to aid visibility.
(7 voti)
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Rhea-N00048464.jpgCrescent Rhea55 visiteCaption originale:"N00048464.jpg was taken on January 18, 2006 and received on Earth January 18, 2006. The camera was pointing toward Rhea that, at the time, was approximately 267.591 Km away, and the image was taken using the CL1 and CL2 filters.
This image has not been validated or calibrated".
(7 voti)
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Saturn-PIA07646.jpgThe limb of Saturn55 visiteOriginal caption:"This brooding portrait shows the South-Western limb of the cold gas giant and the thread-like cloud features lurking there. The limb appears smooth, but at the terminator (such as the boundary between light and dark) and at higher resolution, variations in cloud height can cause shadows that are visible to Cassini.
The image was taken in visible, red light with the Cassini spacecraft wide-angle camera on Oct. 30, 2005, at a distance of approx. 401.000 Km(such as about 249.000 miles) from Saturn and at a phase angle of 155°. Image scale is 20 Km (13 miles) per pixel. The image was contrast enhanced to improve visibility of features in the atmosphere".
(7 voti)
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Rhea-W00012123.jpgSlopes, Ridges, Craters and other unusual surface features55 visiteW00012123.jpg was taken on November 26, 2005 and received on Earth November 28, 2005. The camera was pointing toward Rhea that, at the time, was approximately 691 Km away.
The image was taken using the CL1 and CL2 filters.
(7 voti)
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Rhea-N00043425.jpgSlopes, Valleys and Craters56 visiteN00043425.jpg was taken on November 26, 2005 and received on Earth November 28, 2005. The camera was pointing toward Rhea that, at the time, was approximately 691 Km away.
The image was taken using the CL1 and CL2 filters.
(7 voti)
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Rhea-W00012124.jpgThe Mountains of Rhea55 visiteW00012124.jpg was taken on November 26, 2005 and received on Earth November 28, 2005. The camera was pointing toward Rhea that, at the time, was approximately 531 Km away. The image was taken using the CL1 and CL2 filters.
(7 voti)
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PandoraandDione-PIA07625.jpgPandora and Dione54 visiteOriginal caption:"This view looks up toward the sunlit side of Saturn's rings, as Dione and Pandora trundle by. The moons are on the near side of the Rings and the Planet's shadow stretches across the Rings in the background.
The Cassini spacecraft took this image in visible light with its narrow-angle camera on Sept. 16, 2005, at a distance of approx. 2,4 MKM (such as roughly 1,5 MMs) from Saturn. The image scale is of about 12 Km (7 miles) per pixel on Dione".
(7 voti)
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Space-N00042679.jpgThe "Space" of Saturn55 visitenessun commento
(7 voti)
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Rhea-PIA07614.jpgMimas, Rhea and the Rings54 visiteOriginal caption:"The Saturn moon Mimas is much smaller than Rhea, but the geometry of this scene exaggerates the actual differences in size. Here, Mimas is on the opposite side of the rings from Rhea and Cassini. Saturn's shadow slices across the Ring-plane here.
The view looks toward the Saturn-facing hemisphere on Mimas and the anti-Saturn hemisphere on Rhea.
The image was taken in visible light with the narrow-angle camera on Sept. 9, 2005, from a distance of approx. 1,5 MKM (about 900.000 miles) from Rhea. Mimas was located on the far side of the Rings, such as about 670.000 Km (approx. 420.000 miles) farther from Cassini. The image scale is roughly 9 Km (about 6 miles) per pixel on Rhea and 13 Km (about 8 miles) per pixel on Mimas".
(7 voti)
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Dione-PIA07744.jpgDione and Saturn (natural colors)85 visiteOriginal caption:"Speeding toward pale, icy Dione, Cassini's view is enriched by the tranquil gold and blue hues of Saturn in the distance. The horizontal stripes near the bottom of the image are Saturn's Rings. The spacecraft was nearly in the plane of the Rings when the images were taken, thinning them by perspective and masking their awesome scale. The thin, curving shadows of the C-Ring and part of the B-Ring adorn the Northern Latitudes visible here, a reminder of the Rings' grandeur.
It is notable that Dione, like most of the other icy Saturnian satellites, looks no different in natural color than in monochrome images. Images taken on Oct. 11, 2005, with blue, green and infrared (centered at 752 nnmts) spectral filters were used to create this color view, which approximates the scene as it would appear to the human eye. The images were obtained with the Cassini spacecraft wide-angle camera at a distance of approx. 39.000 Km from Dione and at a phase angle of 22°.
The image scale is about 2 Km/pixel".
(7 voti)
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Janus-N00041468-2.jpgJanus?61 visitenessun commento
(7 voti)
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Mimas-W00011156.jpgMimas in the night54 visiteOriginal caption:"W00011156.jpg was taken on October 13, 2005 and received on Earth October 14, 2005. The camera was pointing toward MIMAS - at approximately 710.418 Km away - and the image was taken using the CB2 and IRP90 filters. This image has not been validated or calibrated".
(7 voti)
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