Saturn: the "Ringed Beauty" and His Moons
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Janus-PIA08296.jpgJanus, from VERY close!63 visiteCaption NASA:"The Cassini spacecraft provides this dramatic portrait of Janus against the cloud-streaked backdrop of Saturn.
Like many small bodies in the Solar System, Janus (about 181 Km, such as approx. 113 miles across) is potato-shaped with many craters, and the moon has a surface that looks as though it has been smoothed by some process.
Like Pandora and Telesto, Janus may be covered with a mantle of fine dust-sized, icy material.
The image was taken using a spectral filter sensitive to wavelengths of infrared light centered at 930 nanometers.
This view was acquired with the Cassini spacecraft narrow-angle camera on Sept. 25, 2006 at a distance of approx. 145.000 Km (such as about 90.000 miles) from Janus and at a Sun-Janus-spacecraft, or phase, angle of 62°. North on Saturn is up. Image scale is roughly 871 mt (about 2.858 feet) per pixel".
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Janus-PIA08951.jpgFloating Janus65 visiteCaption NASA:"Janus floats above the meandering clouds of Saturn and a few of the large craters on the moon are just visible.
This view looks toward the unilluminated side of the Rings from about 18° above the Ring-Plane. Saturn's narrow F-Ring and outer A-Ring are pictured in the upper right.
The image was taken in visible light with the Cassini spacecraft narrow-angle camera on April 13, 2007 at a distance of approx. 1,7 MKM (a little more than 1 MMs) from Janus.
Image scale is roughly 10 Km (about 6 miles) per pixel".MareKromium
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Janus-PIA09871.jpgJanus and Saturn (natural colors; credits: Lunexit)77 visiteCaption NASA:"The Cassini Spacecraft provides a window on the awesome scale of the Saturn System, with the Giant Planet dominating one of its smaller satellites.
Orbiting here, just outside the Main Ring System, is Janus.
This view looks toward the unilluminated side of the Rings from about 16° above the Ring-Plane. The image was taken in visible light with the Cassini spacecraft narrow-angle camera on Feb. 13, 2008. The view was obtained at a distance of approx. 1,6 MKM (about 1 MMs) from Janus and approx. 1,8 MKM (about 1,1 MMs) from Saturn.
Image scale is roughly 10 Km (about 6 miles) per pixel on Janus".MareKromium
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Janus-PIA09872-PCF-LXTT.jpgCrescent Janus (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunar Explorer Italia)241 visiteCaption NASA:"The Cassini Spacecraft snapped this exquisite, close-up view of Saturn's moon Janus, looking toward the South Polar Region, on Feb. 20, 2008.
Janus is about 181 Km (approx. 113 miles) across.
The image was taken in visible light with the Cassini spacecraft narrow-angle camera. The view was acquired at a distance of approx. 169.000 Km (such as about 105.000 miles) from Janus and at a Sun-Janus-Spacecraft, or phase, angle of 71°. Image scale is roughly 1 Km (about 0,6 mile) per pixel".
MareKromium
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Janus-PIA10407.jpgJanus78 visiteCaption NASA:"Craters cover the rugged surface of Saturn's moon Janus. The view is from 42° above the moon's Equator. North on Janus (179 Km, or 111 miles across) is towards the top of the image.
The image was taken with the Cassini Spacecraft narrow-angle camera on May 17, 2008 using a combination of spectral filters sensitive to wavelengths of polarized green light centered at 617 and 568 nanometers. The view was acquired at a distance of approx. 350.000 Km (such as about 217.000 miles) from Janus and at a Sun-Janus-Spacecraft, or phase, angle of 101°.
Image scale is roughly 2 Km (a little more than 1 mile) per pixel".MareKromium
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Janus-PIA10417-1.JPGRugged Janus (Saturated Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)68 visiteCaption NASA:"Craters large and small cover the rugged surface of Saturn's moon Janus.
This view looks toward the Southern Hemisphere of Janus (about 179 Km, or approx. 111 miles across at its widest point). The moon's South Pole is at center.
The image was taken with the Cassini Spacecraft narrow-angle camera on May 26, 2008 using a spectral filter sensitive to wavelengths of IR light centered at 930 nanometers. The view was acquired at a distance of approx. 186.000 Km (such as about 115.000 miles) from Janus and at a Sun-Janus-Spacecraft, or Phase, angle of 83°.
Image scale is roughly 1 Km (about 0,6 miles) per pixel".MareKromium
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Janus-PIA10447-1.jpgJanus (possible True Colors; credits: Lunexit)65 visiteCaption NASA:"This shadowy scene is one of the Cassini Spacecraft's closest views of Saturn's moon Janus.
The slopes of some craters here display hints of the darker material better seen on Epimetheus. A bright linear feature runs up the wall of the large crater at bottom center.
This view looks toward Southern Latitudes on Janus (about 179 kilometers, or 111 miles across). North is toward the top of the image and rotated 58° to the right.
The image was taken in visible light with the Cassini Spacecraft narrow-angle camera on June 30, 2008. The view was obtained at a distance of approx. 33.000 Km (such as about 21.000 miles) from Janus and at a Sun-Janus-Spacecraft, or Phase, Angle of 120°. Image scale is roughly 200 meters (656 feet) per pixel".MareKromium
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Janus-PIA10455.jpgJanus' North Polar Regions72 visiteCaption NASA:"On a high-inclination orbit of Saturn, the Cassini Spacecraft gazes down at the North Polar Region of Janus.
This view looks toward Janus (about 179 Km, or approx. 111 miles across) from a perspective 72° North of the moon's Equator. The image was taken with the Cassini Spacecraft narrow-angle camera on July 14, 2008 using a spectral filter sensitive to wavelengths of infrared light centered at 752 nanometers. The view was acquired at a distance of approx. 259.000 Km (about 161.000 miles) from Janus and at a Sun-Janus-Spacecraft, or Phase, Angle of 78°.
Image scale is roughly 2 Km (5085 feet) per pixel".MareKromium
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Janus-PIA10455~0.jpgNorthern Latitudes on Janus (natural colors; credits: Lunexit)71 visiteCaption NASA:"On a high-inclination orbit of Saturn, the Cassini Spacecraft gazes down at the North Polar Region of Janus. This view looks toward Janus from a perspective 72° North of the moon's Equator.
The image was taken with the Cassini Spacecraft narrow-angle camera on July 14, 2008 using a spectral filter sensitive to wavelengths of infrared light centered at 752 nanometers. The view was acquired at a distance of approx. 259.000 Km (about 161.000 miles) from Janus and at a Sun-Janus-Spacecraft, or Phase, Angle of 78°.
Image scale is roughly 2 Km (5085 feet) per pixel".MareKromium
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Janus-PIA10507.jpgJanus: the RingMaster (natural colors; credits: Lunexit)65 visiteCaption NASA:"Saturn's battered moon Janus wears the record of its long history of impacts.
Janus (approx. 179 Km, or about 111 miles across) orbits just beyond the outer reaches of Saturn's "A" and "F" Rings, which are seen here.
This view looks toward the unilluminated side of the rings from about 4° above the Ring-Plane. The image was taken in Visible Light with the Cassini Spacecraft narrow-angle camera on Sept. 28, 2008.
The view was obtained at a distance of approx. 1,1 MKM (such as about 703.000 miles) from Janus and at a Sun-Janus-Spacecraft, or Phase, Angle of 28°.
Image scale is roughly 7 Km (about 4,5 miles) per pixel".MareKromium
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Janus-PIA10599.jpgJanus (Natural Colors; credits: Lunar Explorer Italia)71 visiteCaption NASA:"Janus imitates its two-faced Greek god namesake by catching light on two sides. The brighter side of Janus is lit by the Sun while light reflected off Saturn dimly illuminates the rest of the moon and reveals the non-spherical shape of this small satellite.
This image has been scaled to twice its original size.
This view looks toward the Leading Hemisphere of the Janus (about 179 Km, or approx. 111 miles across).
North on Janus is up and rotated 22° to the left.
The image was taken in visible light with the Cassini spacecraft narrow-angle camera on Feb. 12, 2009.
The view was obtained at a distance of approx. 1 MKM (such as about 621.000 miles) from Janus and at a Sun-Janus-Spacecraft, or Phase, Angle of 112°.
Image scale is roughly 6 Km (about 4 miles) per pixel".MareKromium
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Janus-PIA11469.jpgJanus' Polar Crater69 visiteCaption NASA:"A large crater on Saturn's tiny moon Janus is distinctly visible in this Cassini Spacecraft image. Lit terrain seen here is on the Leading Hemisphere of Janus (approx. 179 Km, or about 111 miles across). North on Janus is up and rotated 7° to the left.
The image was taken in Visible Light with the Cassini Spacecraft narrow-angle camera on March 5, 2009. The view was acquired at a distance of approx. 1,1 MKM (about 684.000 miles) from Janus and at a Sun-Janus-Spacecraft, or Phase, Angle of 53°. Resolution in the original image was roughly 6 Km (about 4 miles) per pixel.
The image has been magnified by a factor of two to aid visibility".MareKromium
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