| Piú votate - Titan: The "Foggy" Moon |
Titan-W00064419-421-FalseColors-MF-LXTT.jpgTitanian "Aura" (False Colors; credits for the additional process. and color.: Dr Marco Faccin - Lunexit Team)66 visitenessun commentoMareKromium
(4 voti)
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Titan-Regions-Aztlan,_Fensal_and_Senkyo_Region-PIA12655-PCF-LXTT2.jpgAztlan, Fensal and Senkyo Region (Natural Colors; credits: Dr Paolo C. Fienga - Lunexit Team)71 visiteNota Lunexit: questa colorizzazione è stata INTEGRALMENTE ottenuta mediante l'impiego di Illuminazione Virtuale.MareKromium
(4 voti)
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Titan-Regions-Belet_Region-PIA12615.jpgBelet Region60 visiteCaption NASA:"The Cassini spacecraft looks at Belet, a Dark Region on Saturn's largest moon, Titan. This large Region on Titan has a low albedo, meaning that it diffusely reflects little light.
This view looks toward the Trailing Hemisphere of Titan. North on Titan is up and rotated 2° to the right.
The image was taken with the Cassini Spacecraft narrow-angle camera on Jan. 15, 2010 using a spectral filter sensitive to wavelengths of Near-iInfraRed Light centered at 938 nanometers. The view was acquired at a distance of approx. 1,2 MKM (such as about 746.000 miles) from Titan and at a Sun-Titan-Spacecraft, or Phase, Angle of 51°.
Image scale is roughly 7 Km (about 4,5 miles) per pixel".MareKromium
(4 voti)
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Titan-Crescent-EB-LXTT-00.jpgThe "Yellow Smile" of Titan (Natural Colors; credits: Elisabetta Bonora - Lunexit Team)59 visitenessun commentoMareKromium
(4 voti)
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Titan-PIA12843.jpgWhat's inside Titan?58 visiteCaption NASA:"This artist's illustration shows the likely interior structure of Saturn's moon Titan, as deduced from gravity field data collected by the Cassini Spacecraft. The investigation by Cassini's radio science team suggests that Titan's interior is a cool mix of ice studded with rock, though the outermost 500 Km (approx. 300 miles) appear to be ice essentially devoid of any rock.
Many planets and moons, including the Earth, evolve into a body with a clearly distinct rocky core. This radio science investigation suggests Titan's interior, cool and sluggish, failed to allow the interior to separate into completely differentiated layers of ice and rock.
In addition to the Hazy Surface of Titan (yellow), the layers in the cutaway show an ice layer starting near the Surface (light gray), an internal ocean hypothesized from other Cassini data (blue), another layer of ice (light gray) and the mix of rock and ice in the interior (dark gray). In the background are the Cassini Spacecraft and Saturn, not to scale".MareKromium
(4 voti)
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Titan-Regions-Dichotomy_Boundary_Region-PIA12586.jpgThe "Dichotomy Boundary" on Titan (N-IR Light - Natural Colors; credits: Dr Paolo C. Fienga - Lunexit Team)57 visiteCaption NASA:"The Cassini Spacecraft records Titan's Seasonal Hemispheric Dichotomy, with the moon's northern half appearing slightly lighter than the southern half in this image.
This view looks toward the Trailing Hemisphere of Titan. North on Titan is up and rotated 12° to the right.
The image was taken with the Cassini Spacecraft narrow-angle camera on Feb. 16, 2010 using a spectral filter sensitive to wavelengths of Near-InfraRed Light centered at 889 nanometers. The view was obtained at a distance of approx. 1,1 MKM (such as about 684.000 miles) from Titan and at a Sun-Titan-Spacecraft, or Phase, Angle of 28°.
Image scale is roughly 7 Km (about 4,3 miles) per pixel".MareKromium
(4 voti)
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Titan-IR.jpgIR Titan (credits: Dr M. Faccin - Lunexit Team)58 visitenessun commentoMareKromium
(4 voti)
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Titan-EB-MV.jpg"Methane View" of Titan (credits: Elisabetta Bonora)59 visitenessun commentoMareKromium
(4 voti)
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Titan-Mountains-PIA12496.jpgNew Wrinkles on Titan (Colorization made on Radar Image - credits: Dr Paolo C. Fienga - Lunexit Team)59 visiteIn this Synthetic Aperture Radar (SAR) image obtained by NASA's Cassini Spacecraft, two generally similar features, upper center and lower right, appear to be low Mountains with Grooves running roughly in the up-down direction.
A set of straight lines are also visible at lower left.
But what made the Grooves?
Grooves can result from forces that originate from within a planet - including forces that pull the Crust of a planet apart and cracks produced by melt intruding into the Crust.
They can also come from external forces like wind or rainfall, which produces river channels that can cut down through layers of rock.
All of these produce grooves on Earth's Surface, and may also be at work on Titan.
Another intriguing thing about this image is that in this image the "light" (actually the radar illumination) comes from the top. With this kind of illumination, the upper side of these mountains should be bright because they face the illumination, but the left side of the upper-center feature and the right side of the lower feature are bright. The brightness indicates that there is a different material in these areas, and the Grooves exist in both dark and light materials.
The Titan Radar Mapper acquired this image at 41° North Latitude and 213° West Longitude on December 28, 2009.
The image measures approx. 250 Km (about 160 miles) high and approx. 285 Km (about 180 miles) wide, with resolution of roughly 350 meters (1100 feet) per pixel. North is on the left, and the image is illuminated from the top.
The S.I.A. varies from 11 to 25°.
Two dark horizontal lines that run across the middle of the image show the joints between individual radar beams and are not features on the Titan Surface.MareKromium
(4 voti)
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Titan-Regions-Fensal_Aztlan_Aaru_and_Senkyo_Regions-PIA12531.jpgTitanian Geography (Natural Colors; credits: Dr Paolo C. Fienga - Lunexit Team)58 visiteCaption NASA:"The Cassini Spacecraft gazes at several albedo features on Saturn's largest moon, Titan.
Left to right are four Dark Regions: Fensal, Aztlan, Aaru and a part of Senkyo. The bright area Quivira lies near the center of the image, separating Fensal and Aztlan. This view looks toward the Saturn-facing side of Titan. North on Titan is up and rotated 24° to the right.
The image was taken with the Cassini Spacecraft narrow-angle camera on June 25, 2009 using a spectral filter sensitive to wavelengths of Near-InfraRed Light centered at 938 nanometers. The view was obtained at a distance of approx. 1,3 MKM (about 808.000 miles) from Titan and at a Sun-Titan-Spacecraft, or Phase, Angle of 12°.
Image scale is roughly 8 Km (about 5 miles) per pixel".MareKromium
(4 voti)
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Titan-N00143762-N00143780.gifOverlap (GIF-Movie; credits: Dr G. Barca)58 visitenessun commentoMareKromium
(4 voti)
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Titan-Regions-Senkyo_Region-PIA11577-02.jpgLight and dark Surface Features of Senkyo (possible Natural Colors; credits: Lunexit)75 visiteCaption NASA:"The Cassini Spacecraft peers through the hazy Atmosphere of Titan for a close view of light and dark Terrain on Saturn's largest moon.
This view is centered on Terrain at 28° South Lat. and 334° West Long. and shows a small part of the albedo feature named Senkyo on the Trailing Hemisphere of Titan.
The image was taken with the Cassini Spacecraft narrow-angle camera on July 9, 2009 using a spectral filter sensitive to wavelengths of Near-InfraRed Light centered at 938 nanometers. The view was obtained at a distance of approx. 251.000 Km (such as about 156.000 miles) from Titan and at a Sun-Titan-Spacecraft, or Phase, Angle of 27°.
Image scale is about 1 Km (3281 feet) per pixel".MareKromium
(4 voti)
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