| Piú votate - Saturn: the "Ringed Beauty" and His Moons |
AB-Another Streak in the Sky.jpgThe 2nd "Streak" in the Sky of Saturn - W00000828188 visiteMa ecco che, improvvisamente, accade qualcosa. La traccia luminosa che vediamo questa volta è assai meno brillante di quella del 4 Agosto, ma l'Anomalia è comunque del tutto evidente. Cosa è successo? E' successo che, ancora una volta, un oggetto luminoso in movimento lungo una traiettoria lineare è passato davanti ad uno degli "occhi elettronici" di Cassini/Huygens, facendosi "immortalare". Noi abbiamo battezzato questa seconda Anomalia con il nome di "Saturn PF2-08-2004". A quando la Terza?!?...
(36 voti)
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Japetus from 6.100.000 Km.jpgJapetus from approx. 6.100.000 Km80 visitenessun commento
(31 voti)
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Tethys-PIA07734.jpgIthaca Chasma and the "steep scarps" of Tethys56 visiteOriginal caption:"This view of the surface of Saturn's moon Tethys, taken during Cassini's close approach to the moon on Sept. 24, 2005, reveals an icy land of steep cliffs. The view is of the southernmost extent of Ithaca Chasma, in a Region not seen by NASA's Voyager spacecraft.
The ridges around Ithaca Chasma have been thoroughly hammered by impacts. This appearance suggests that Ithaca Chasma as a whole is very old. There is brighter material in the floors of many craters on Tethys. That's the opposite situation from Saturn's oddly tumbling moon Hyperion, where dark material is concentrated in the bottoms of many craters. This view is centered on terrain at approximately 2,5° South Latitude and 352° West Longitude on Tethys. North on Tethys is toward the right in this view.
This clear filter view was obtained using the Cassini spacecraft narrow-angle camera at a distance of approximately 32.300 Km (roughly 20.000 miles) from Tethys and at a phase angle of 20°. The image scale is 190 mt per pixel".
(19 voti)
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Tethys-PIA06518_modest.jpgTethys from approx. 7.900.000 Km54 visiteCaption NASA originale: "Two large craters and hints of several smaller ones are visible in this Cassini image of Saturn's icy moon Tethys (1060 Km across).
The image was taken in visible light with the Cassini spacecraft narrow angle camera on Sept. 23, 2004, at a distance of 7.9 MKMs from Tethys and at a Sun- Tethys-spacecraft, or phase, angle of 80°. The image scale is 48 Km per pixel. The image has been contrast-enhanced and magnified by a factor of four to aid visibility".
(21 voti)
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Saturn-N00020984.jpgThe "Rings"54 visitenessun commento
(14 voti)
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Saturn in infrared-HST-PIA01268_modest.jpgInfrared view of Saturn - HST54 visiteCaption NASA originale:"The blue colors indicate a clear atmosphere down to a main cloud layer. The green and yellow colors indicate a haze above the main cloud layer. The red and orange colors indicate clouds reaching up high into the atmosphere and red clouds are even higher than the orange ones. The densest regions of two storms near Saturn's equator appear white hile the rings, basically made up of chunks of ice, are as white as images of ice taken in visible light".
(14 voti)
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Tethys-N00036303.jpgTethys from 487.484 Km57 visitenessun commento
(7 voti)
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Enceladus-Fly-By-EB.jpgEnceladus' Fly-By (Image-Mosaic; credits: Elisabetta Bonora - Lunexit Team)59 visiteUn altro Lavoro che Vi presentiamo con immenso piacere e soddisfazione...MareKromium
(8 voti)
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Enceladus-PIA07459.jpgEnceladus in infrared62 visiteCaption NASA originale:"This infrared color image of Enceladus was obtained by the Cassini visual infrared mapping spectrometer on March 9, 2005, when the Cassini spacecraft was 9.145 Km away from Enceladus.
Enceladus shows substantial differences in composition or, more likely, particle size on its surface. Redder areas correspond to larger grain sizes, and appear to be correlated with craters and ridged regions. The surface of Enceladus is nearly pure water ice; no other components have been identified yet. The middle of the image is located at the equator near a longitude of 210°.
The image is about 100 Km square and it shows the ratio of reflected light at 1,34 and 1,52 microns, wavelengths that are not visible to the human eye".
(8 voti)
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Enceladus-N0016088-114-MF-LXTT.jpgEnceladus (an Image-Mosaic in Natural Colors; credits for the additional process. and color.: Dr Marco Faccin - Lunexit Team)78 visitenessun commentoMareKromium
(7 voti)
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Enceladus-EB3-LXTT.jpgThe always "Fresh Face" of Enceladus (possible Natural Colors; credits for the additional process. and color.: Elisabetta Bonora - Lunexit Team)114 visitenessun commentoMareKromium
(7 voti)
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Enceladus-N00153894-97-EB-LXTT.jpgSubtle Color Variations on Enceladus (Enhanced Natural Colors; credits forb the additional process. and color.: Elisabetta Bonora - Lunexit Team)98 visitenessun commentoMareKromium
(8 voti)
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