| Piú votate - Saturn: the "Ringed Beauty" and His Moons |
SaturnianSpace-MF.gifStars, Streaks and (overexposed) Moons in the Space of Saturn (GIF-Movie; credits: Dr M. Faccin - Lunexit Team)59 visitenessun commentoMareKromium
(3 voti)
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SaturnianSpace-RB1.gifViews and Features of the Space of Saturn (GIF-Movie; credits: Elisabetta Bonora - Lunexit Team)58 visitenessun commentoMareKromium
(3 voti)
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The_Rings-MF-N00150070_to_N00150100.jpgGlowing in the Darkness... (Image Mosaic - Possible True Colors; credits: Dr M. Faccin - Lunexit Team)57 visitenessun commentoMareKromium
(3 voti)
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The_Rings-EB3-N00150070-77.jpgCosmic Wonder... (Natural Colors; credits: Elisabetta Bonora - Lunexit Team)58 visitenessun commentoMareKromium
(3 voti)
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Tethys_and_Dione-PIA12534.jpgMutual Event in the Space of Saturn: Tethys and Dione59 visiteCaption NASA:"From the Cassini Spacecraft's perspective, Saturn's moon Dione passes in front of the moon Tethys in this "Mutual Event".
These 3 images were each taken about one minute apart. These images are part of a Mutual Event Sequence in which one moon passes close to or in front of another. Such observations help scientists refine their understanding of the orbits of Saturn's moons.
Brightly lit Terrain seen here is on the anti-Saturn side of Dione and between the Leading Hemisphere and anti-Saturn side of Tethys. The large Odysseus Crater is visible on Tethys. Tethys is approx.2,6 MKM (about 1,6 MMs) from Cassini. Dione is spprox. 2,2 MKM (such as about 1,4 MMs) away.
Sunlight reflected by Saturn, which is out of the frame to the right, is lighting up the side of Tethys that is away from the Sun, but due to the Spacecraft's viewing angle and the relative positions of each body, this is not true for Dione.
The images were taken in Visible Light with the Cassini pacecraft narrow-angle camera on Nov. 28, 2009. Scale in the original images was roughly 13 Km (a little more than 8 miles) per pixel on Dione and about 16 Km (approx. 10 miles) per pixel on Tethys.
The images were contrast enhanced and magnified by a factor of 1.5 to enhance the visibility of Surface Features on both moons".MareKromium
(3 voti)
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Japetus-MF1.jpgThe unusually-looking Surface of Japetus (possible Natural Colors; credits: Dr M. Faccin - Lunexit Team)68 visitenessun commentoMareKromium
(3 voti)
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Mimas-PIA12532.jpgLost in the Dark (Natural Colors; credits: Dr Paolo C. Fienga - Lunexit Team)57 visiteCaption NASA:"Lit terrain seen here is on the Trailing Hemisphere of Mimas. This view looks toward the Northern, sunlit side of the Rings, from just above the Ring-Plane.
The image was taken in Visible Light with the Cassini Spacecraft narrow-angle camera on Nov. 3, 2009. The view was obtained at a distance of approx. 760.000 Km (about 472.000 miles) from Mimas and at a Sun-Mimas-Spacecraft, or Phase, Angle of 61°.
Image scale is roughly 5 Km (a little more than 3 miles) per pixel. MareKromium
(3 voti)
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Saturn-PIA12533.jpgEternal Vision (Natural Colors; credits: NASA/JPL/Space Science Institute)61 visiteCaption NASA:"A pastel crescent of Saturn is interrupted by the moon Mimas and the Rings in this color image.
Mimas (approx. 396 Km - or about 246 miles across) appears as a dark speck just above the Rings.
This view looks toward the Northern, sunlit side of the Rings, from just above the Ring-Plane.
Images taken using red, green and blue spectral filters were combined to create this Natural Color view. The images were obtained with the Cassini Spacecraft wide-angle camera on Oct. 27, 2009 at a distance of approx. 2,2 MKM (such as about 1,4 MMs) from Saturn.
Image scale is roughly 129 Km (approx. 80 miles) per pixel".MareKromium
(3 voti)
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Japetus-PIA12521.jpgCrescent Japetus (possible Natural Colors; credits: Dr Paolo C. Fienga - Lunexit Team)64 visiteCaption NASA:"The Cassini Spacecraft examines the rough Dark-Light Dichotomy of the Terrain on Saturn's moon Japetus. Scientists continue to investigate the nature of this moon's Surface.
Lit Terrain seen here is on the Saturn-facing side of Japetus.
North on Japetus is up and rotated 8° to the left. Scale on Japetus was about 7 Km (about 4,3 miles) per pixel in the original image. The image was contrast enhanced and magnified by a factor of two to enhance the visibility of Surface Features.
The image was taken in Visible Green Light with the Cassini Spacecraft narrow-angle camera on Sept. 13, 2009. The view was acquired at a distance of approx. 1,2 MKM (about 746.000 miles) from Iapetus and at a Sun-Japetus-Spacecraft, or Phase, Angle of 103°".MareKromium
(3 voti)
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The_Rings-PIA12518.jpgWithin the Rings (Natural Colors; credits: NASA/JPL/Space Science Institute)62 visiteCaption NASA:"Saturn's moon Epimetheus casts a shadow across the colourful Rings of Saturn, in this image taken before the Planet's August 2009 Equinox.
Epimetheus (approx. 113 Km, or about 70 miles across) is visible as a small dot at the center of the bottom of the image.
The novel illumination geometry that accompanies Equinox lowers the Sun's angle to the Ring-Plane, significantly darkens the Rings, and causes out-of-plane structures to look anomalously bright and cast shadows across the Rings. These scenes are possible only during the few months before and after Saturn's Equinox, which occurs only once in about 15 Earth years. Before and after Equinox, Cassini's cameras have spotted not only the predictable shadows of some of Saturn's moons (see PIA11657), but also the shadows of newly revealed Vertical Structures in the Rings themselves (see PIA11665).
Images taken using red, green and blue spectral filters were combined to create this Natural Color view. This view looks toward the southern, sunlit side of the Rings from about 39° below the Ring-Plane.
The images were obtained with the Cassini Spacecraft wide-angle camera on June 8, 2009 at a distance of approx. 725.000 Km (about 450.000 miles) from Saturn.
Image scale is roughly 40 Km (about 25 miles) per pixel".MareKromium
(3 voti)
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Prometheus-091227-N00148969-EB.jpgPrometheus adrift... (possible Natural Colors; credits: Elisabetta Bonora - Lunexit Team)58 visiteNulla di artefatto o manipolato digitalmente, in questo frame prodotto dalla nostra Elisabetta Bonora!
La colorazione rosacea di Prometheus, infatti, potrebbe e dovrebbe dipendere, a nostro modo di vedere, dal Saturnshine (o "Chiaro di Saturno").
E non è neppure inutile rammentare che Prometheus non è la sola Luna Saturniana ad avere un colore simile!
Esso, infatti, forma uno splendido "Space Duo" con Hyperion la cui Superficie, sempre secondo la NASA (e ad eccezione di quanto contenuto nei bizzarri crateri che lo ricoprono quasi per intero), sarebbe di color rosa pallido, con sfumature grigie e bianco/verdastre.MareKromium
(3 voti)
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Prometheus-N00148968-N00148985-GB.gifPrometheus adrift... (GIF-Movie; credits: Dr G. Barca)58 visitenessun commentoMareKromium
(3 voti)
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