| Ultimi arrivi - Saturn: the "Ringed Beauty" and His Moons |
Tethys-N00086750.jpgThe cratered Lands of Tethys (7)56 visitenessun commentoMareKromiumLug 22, 2007
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Enceladus-N00086740.jpgIcy Enceladus...57 visitenessun commentoMareKromiumLug 22, 2007
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Helene-N00086687.jpgJust like Phobos: Helene (1)58 visitenessun commentoMareKromiumLug 22, 2007
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Helene-N00086688.jpgJust like Phobos: Helene (2)58 visitenessun commentoMareKromiumLug 22, 2007
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Tethys-N00086699.jpgThe cratered Lands of Tethys (1)57 visitenessun commentoMareKromiumLug 22, 2007
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Tethys-N00086703.jpgThe cratered Lands of Tethys (2)57 visitenessun commentoMareKromiumLug 22, 2007
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Tethys-N00086706.jpgThe cratered Lands of Tethys (3)58 visitenessun commentoMareKromiumLug 22, 2007
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Tethys-N00086709.jpgThe cratered Lands of Tethys (4)57 visitenessun commentoMareKromiumLug 22, 2007
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Tethys-N00086711.jpgThe cratered Lands of Tethys (5)56 visitenessun commentoMareKromiumLug 22, 2007
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The_Rings-PIA08988.jpgBright Region in the C-Ring59 visiteCaption NASA:"This bright, isolated plateau in the middle of the C-Ring displays interesting internal variations in brightness. The plateau is not high in terms of elevation, but rather in terms of its particle density (seen here as brightness), which is several times higher than the surrounding Ring Structure.
Ring scientists are working to understand what produces the sharp boundaries of the plateau features, as well as the nature of the internal variations in brightness.
This view looks toward the sunlit side of the Rings from about 18° below the Ring-Plane.
The image was taken in visible light with the Cassini spacecraft narrow-angle camera on June 12, 2007 at a distance of approx. 230.000 Km (about 143.000 miles) from Saturn. Image scale is roughly 1 Km (3353 feet) per pixel".MareKromiumLug 22, 2007
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Saturn-PIA08987.jpgNorthern Latitudes58 visiteCaption NASA:"Incredible swirling details in Saturn's Northern Clouds can be seen in this dazzling view. Shadows cast by the Rings embrace the Northern Hemisphere.
The view looks toward the unilluminated side of the Rings from about 16° above the Ring-Plane.
The image was taken with the Cassini spacecraft wide-angle camera on June 10, 2007 using a spectral filter sensitive to wavelengths of infrared light centered at 939 nanometers. The view was acquired at a distance of approx. 1,3 MKM (such as about 800.000 miles) from Saturn. Image scale is roughly 72 Km (about 45 miles) per pixel".MareKromiumLug 19, 2007
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New_Moon-PIA08369_full_movie.gifA "New Moon" for Saturn83 visiteCaption NASA:"The 60th moon of Saturn reveals itself in a sequence of images. The discovery suggests that the new moon, along with its neighbors Methone and Pallene (discovered by the Cassini imaging team in 2004), may form part of a larger group of moons in this region. The movie spans 6 hours.
Initial calculations show the moon to have a width of approx. 2 Km (1,2 miles), with an orbit that lies between those of the moons Methone and Pallene. The moon's orbit is in resonance with another moon, Mimas, also seen in this sequence as a very bright, moving object. The new moon's location is indicated by a red box.
The (narrow) ring visible in the images is the G-Ring, and the G-Ring arc passes through the field of view during the course of the movie. Calypso, a Trojan moon of Tethys, is also visible in the sequence. Trojan moons are found near gravitationally stable points ahead or behind a larger moon.
This view looks toward the non-illuminated side of the Rings from about 3° above the Ring-Plane.
The series of images was taken in visible light with the Cassini spacecraft wide-angle camera on May 30, 2007, at a distance of approximately 1.76 million kilometers (1.09 million miles) from Saturn. Image scale is about 105 kilometers (65 miles) per pixel. The ghostly shape that stretches across the scene results from scattered light within the camera optics".MareKromiumLug 19, 2007
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