Saturn: the "Ringed Beauty" and His Moons
|
|
|
Tethys-PIA11572.jpgOdysseus Crater (Natural Colors; credits: Lunexit)55 visiteCaption NASA:"The Odysseus Crater sprawls across the Mid-Latitudes of the Northern Hemisphere of the moon Tethys.
The Odysseus Crater is about 450 Km across. Lit Terrain seen here is on the anti-Saturn side of Tethys (about 1062 Km, or approx. 660 miles across). This view looks down on the moon's North Pole, which lies on the Terminator about a quarter of the way inward from the top edge of the moon in the image.
The image was taken in Visible Light with the Cassini Spacecraft narrow-angle camera on July 11, 2009.
The view was acquired at a distance of approx. 577.000 Km (about 359.000 miles) from Tethys and at a Sun-Tethys-Spacecraft, or Phase, Angle of 65°.
Image scale is roughly 3 Km (a little less than 2 miles) per pixel".MareKromium
|
|
Tethys-PIA11624.jpgPenelope (additional process. by Lunexit)55 visiteCaption NASA:"The Cassini Spacecraft spies the large Penelope Crater on Tethys.
This view looks toward the Trailing Hemisphere of Tethys (approx. 1062 Km - or about 660 miles across). North on Tethys is up.
The image was taken with the Cassini Spacecraft narrow-angle camera on Oct. 14, 2009 using a spectral filter sensitive to wavelengths of UltraViolet Light centered at 338 nanometers.
The view was obtained at a distance of approx. 256.000 Km (about 159.000 miles) from Tethys and at a Sun-Tethys-Spacecraft, or Phase, Angle of 1°.
Image scale is roughly 2 Km (about 1,25 mile) per pixel".MareKromium
|
|
Tethys-PIA12319.jpgTethys and the Rings (Natural Colors; credits: NASA/JPL/Space Science Institute)54 visiteCaption NASA:"Cassini peers toward the distant, icy plains of Saturn's moon Tethys. The Planet's "A" and "F"-Rings slice across the top of this view.
This view of Tethys represents "Target 2" in the fall 2009 edition of the Cassini Scientist for a Day contest. (See http://saturn.jpl.nasa.gov/education/scientistforaday8thedition/.) The contest is designed to give students a taste of life as a scientist by challenging them to write an essay describing the value of one target choice among three for Cassini to image.
Images taken using red, blue and green spectral filters were combined to create this color view. The images were acquired with the Cassini wide-angle camera on Oct. 11, 2009 at a distance of approx. 1,4 MKM (about 900.000 miles) from Tethys".MareKromium
|
|
Tethys-PIA12588.jpgTethys (Absolute Natural Colors; credits: Dr Paolo C. Fienga - Lunexit Team)54 visiteCaption NASA:"Odysseus Crater, with a size of epic proportions, stretches across a large Northern Expanse on Saturn's moon Tethys.
This view looks toward the Leading Hemisphere of Tethys. Odysseus Crater is about 450 Km, or approx. 280 miles, across. North on Tethys is up and rotated 3° to the right.
The image was taken in Visible Green Light with the Cassini Spacecraft narrow-angle camera on Feb. 14, 2010. The view was obtained at a distance of approx. 178.000 Km (such as about 111.000 miles) from Tethys and at a Sun-Tethys-Spacecraft, or Phase, Angle of 73°.
Image scale is about 1 Km (3485 feet) per pixel".
MareKromium
|
|
Tethys-PIA12676.jpgTethys (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)55 visiteCaption NASA:"The Cassini Spacecraft looks toward an area between the Trailing Hemisphere and anti-Saturn side of Tethys and spies the large crater Melanthius near the moon's South Pole and, in this picture, near the Terminator.
Melanthius is about 250 Km (approx. 155 miles) wide on Tethys. North on Tethys is up and rotated 19° to the right.
The image was taken in Visible Light with the Cassini Spacecraft narrow-angle camera on April 29, 2010. The view was acquired at a distance of approx. 670.000 Km (such as about 416.000 miles) from Tethys and at a Sun-Tethys-Spacecraft, or Phase, Angle of 41°.
Image scale is roughly 4 Km (approx. 2,5 miles) per pixel".MareKromium
|
|
Tethys-PIA12686.jpgCrescent Tethys (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)55 visiteCaption NASA:"Sunlight illuminates the deep cut of Ithaca Chasma on Saturn's moon Tethys. Ithaca Chasma runs roughly North-South for more than about 1000 Km (approx. 620 miles) on Tethys.
Lit Terrain seen here is on the Saturn-facing side of Tethys. North on Tethys is up and rotated 18° to the right.
The image was taken in visible light with the Cassini Spacecraft narrow-angle camera on June 2, 2010. The view was obtained from a distance of approx. 477.000 Km (about 296.000 miles) from Tethys and at a Sun-Tethys-Spacecraft, or Phase, Angle of 127°.
Image scale is roughly 3 Km (a little less than 2 miles) per pixel".MareKromium
|
|
Tethys-PIA12802.jpgThe "Face" of Tethys (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)79 visiteCaption NASA:"Geologic faults among craters on Saturn's moon Tethys are depicted in this image captured during a Fly-By of the moon by NASA's Cassini Spacecraft on Aug. 14, 2010.
The brightly illuminated, prominent Impact Crater near the bottom middle of this image has been dissected by numerous parallel Faults that run diagonally across the image. The presence of the Faults that cut through the Crater and the movement of Surface Materials have made the Crater outline somewhat non-circular.
Near the center of the image, running diagonally from the left to right, is an old Graben, such as a "Linear Depression of the Terrain between two Faults".
Below these Faults and near the middle top of the image is a large ancient Impact Crater that is so highly overprinted by more recent Craters that it can barely be recognized.
On the left of the image, there are some horizontal lines that can be seen very faintly cutting across Craters. These lines are artifacts of missing data in the raw image that could not be eliminated through processing the image.
This view looks toward the Leading Hemisphere of Tethys. The view is centered on terrain at 59° North Latitude and 79° West Longitude.
The image was taken in Visible Light with the Cassini Spacecraft narrow-angle camera. The view was acquired at a distance of approx. 40.000 Km (such as about 25.000 miles) from Tethys and at a Phase Angle of 103°. Image scale is roughly 234 meters (767 feet) per pixel".MareKromium
|
|
Tethys-PIA14581-PCF-LXTT-0.jpgTethys (False b/w - credits for the additional process.: Dr Paolo C. Fienga - Lunexit Team)194 visiteCaption NASA:"Saturn's moon Tethys shows off its tortured Surface in this Cassini Spacecraft image. On the top left of the image there is huge Odysseus Crater. On the bottom right, instead, there is Ithaca Chasma: a series of Scarps that run North-to-South across the moon for more than 620 miles (approx. 1000 Km). North on Tethys is up and rotated 25° to the right. This view looks toward the area between the Leading Hemisphere and Saturn-facing side of Tethys.
The image was taken in Visible Green Light with the Cassini Spacecraft narrow-angle camera on Sept. 14, 2011. The view was acquired at a distance of approximately 178.000 miles (approx. 287.000 Km) from Tethys and at a Sun-Tethys-Spacecraft, or Phase, Angle of 11°. Image scale is about 1 mile (1,6 Km) per pixel". MareKromium
|
|
Tethys-PIA14581-PCF-LXTT-1.jpgTethys (Sx: False b/w - credits for the additional process.: Dr Paolo C. Fienga - Lunexit Team - Dx: Original NASA b/w RAW Frame)248 visitenessun commentoMareKromium
|
|
Tethys-W00010668.jpgCrescent Tethys and the Rings53 visiteUn bellissimo frame: poco da dire al riguardo se non che l'immagine è stata ottenuta alla fine del Fly-By dell'ultimo week-end di Settembre 2005, quando Cassini si era allontanata da Tethys ormai di oltre 45.000 Km...
|
|
Tethys-W00030271.jpgTethys in the Saturn-shine (natural colors - elab. Lunexit)53 visitenessun commentoMareKromium
|
|
Tethys-W00047018.jpgTethys and the Stars beyond...54 visitenessun commentoMareKromium
|
|
| 2245 immagini su 188 pagina(e) |
 |
|
|
|
|
166 | |
|
|
|
|
