| Piú votate - Saturn: the "Ringed Beauty" and His Moons |
Mimas-PIA10469.jpgShadowed Mimas (natural colors; credits: Lunexit)58 visiteCaption NASA:"The shadow of Saturn's Rings sits upon the Northern Hemisphere of Mimas like a dark cap. In this Cassini Spacecraft view, which looks toward high Northern Latitudes on Mimas, the moon is just grazing the shadow of the Rings. The two distinct shadow regions seen here are the penumbra and the much darker umbra. An observer within the penumbral region on Mimas would have their view of the Sun partly blocked by the Rings.
For a viewer within the umbral region, the Rings would completely cover the Sun. However, since the Rings are not opaque, the Sun would still be dimly visible.
The image was brightened to reveal faint details within the eclipsed region, illuminated dimly by sunlight filtering through the Rings. Another view, PIA10467, was acquired a few minutes prior to this image, and shows a nearly identical Mimas (about 396 Km, or approx. 246 miles across) before the Rings' shadow obscured the surface.
The image was taken in visible light with the Cassini Spacecraft narrow-angle camera on Aug. 4, 2008. The view was acquired at a distance of approx. 143.000 Km (89.000 miles) from Mimas and from about 67° above the moon's Equator. The Phase Angle in the image is 106°.
Image scale is 856 meters (2808 feet) per pixel".MareKromium
(6 voti)
|
|
Dione-N00119790.jpgCross-Worlds! (6)58 visitenessun commentoMareKromium
(6 voti)
|
|
Dione-N00119791.jpgCross-Worlds! (7)54 visitenessun commentoMareKromium
(6 voti)
|
|
Dione-N00119793.jpgCross-Worlds! (9)56 visitenessun commentoMareKromium
(6 voti)
|
|
Dione-N00119786.jpgCross-Worlds! (2)96 visitenessun commentoMareKromium
(6 voti)
|
|
Dione-N00119787.jpgCross-Worlds! (3)54 visitenessun commentoMareKromium
(6 voti)
|
|
Dione-N00119789.jpgCross-Worlds! (5)54 visitenessun commentoMareKromium
(6 voti)
|
|
Dione-PIA10458.jpgDione (possible True Colors; credits: Lunexit)56 visiteCaption NASA:"Bright, wispy-looking fractures reach across the rugged, icy landscape of Dione (see PIA06163 for a close-up view of Dione's icy canyons). The medium-sized crater Dido, with its prominent central peak, sits just right of the Terminator, below center.
This view looks toward the Saturn-facing Side of Dione. North is toward the top and rotated 6° to the left.
The image was taken in visible light with the Cassini Spacecraft narrow-angle camera on July 21, 2008. The view was acquired at a distance of approx 290.000 Km (such as about 180.000 miles) from Dione and at a Sun-Dione-Spacecraft, or Phase, Angle of 89°.
Image scale is roughly 2 Km (a little more than 1 mile) per pixel".MareKromium
(6 voti)
|
|
Janus-PIA10447-1.jpgJanus (possible True Colors; credits: Lunexit)55 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
(6 voti)
|
|
Enceladus-W00048468.jpgApproaching Enceladus (natural colors; credits: Lunexit)57 visiteCaption NASA:"W00048468.jpg was taken on August 11, 2008 and received on Earth August 12, 2008. The camera was pointing toward ENCELADUS that, at the time, was approximately 4748 kilometers away.
The image was taken using the CL1 and CL2 filters and it has not been validated or calibrated".MareKromium
(6 voti)
|
|
Enceladus-N00118330.jpgCrescent Enceladus (natural colors; credits: Lunexit)54 visiteCaption NASA:"N00118330.jpg was taken on August 11, 2008 and received on Earth August 12, 2008. The camera was pointing toward ENCELADUS that, at the time, was approximately 113.865 kilometers away.
The image was taken using the CL1 and CL2 filters and it has not been validated or calibrated".MareKromium
(6 voti)
|
|
Rhea-PIA10429.jpgRhea (MULTISPECTRUM; credits: Lunexit)64 visiteCaption NASA:"The Cassini Spacecraft surveys the stark beauty of Saturn's moon Rhea.
Rhea's North Pole is up and tilted slightly away from Cassini in this view; the moon's south pole is in sunlight at bottom. Lit terrain seen here is on the Anti-Saturn Side of Rhea.
The image was taken in visible red light with the Cassini Spacecraft narrow-angle camera on June 10, 2008. The view was acquired at a distance of approx. 420.000 Km (approx. 261.000 miles) from Rhea and at a Sun-Rhea-Spacecraft, or Phase, Angle of 53°.
Image scale is roughly 3 Km (about 2 miles) per pixel".MareKromium
(6 voti)
|
|
| 2244 immagini su 187 pagina(e) |
 |
|
|
|
|
30 | |
|
|
|
|
