| Risultati della ricerca nelle immagini - "Prometheus" |
Atlas and others-PIA06522_modest.jpgSaturn's Rings + Atlas, Prometheus and Janus75 visiteCaption NASA originale: "Saturn hosts its own miniature solar system with an entourage of more than 30 moons. This image shows Saturn's "A" and "F" Rings, along with 3 of the moons that orbit close to them. From innermost to outermost, tiny Atlas (32 Km across) orbits just outside of the bright "A-Ring" and is seen above center in this view. Prometheus (102 Km across) is visible near lower right. Prometheus and its smaller cohort, Pandora, shepherd the thin, knotted F-Ring. Janus (181 Km across) can be seen near lower left. Janus shares its orbit with the moon Epimetheus. Density waves due to Janus cause some of the bright bands seen in the A-Ring in this image. Prometheus and Atlas also produce waves in the rings, but their wave regions are too narrow to be seen here. The planet's shadow stretches all the way across the main rings in this view. The shadow has an oval shape now but over the next few years it will become more rectangular as the planet orbits the Sun and the angle Sunlight-Rings decreases".
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Atlas, Pandora and Janus-PIA06522_modest.jpgSaturn's Rings + Atlas, Pandora, Prometheus and Janus77 visiteCaption NASA originale: "Saturn hosts its own miniature solar system with an entourage of more than 30 moons. This image shows Saturn's "A" and "F" Rings, along with three of the moons that orbit close to them. From innermost to outermost, tiny Atlas (32 Km across) orbits just outside of the bright "A-Ring" and is seen above center in this view. Prometheus (102 Km across) is visible near lower right. Prometheus and its smaller cohort, Pandora, shepherd the thin, knotted F-Ring. Janus (181 Km across) can be seen near lower left. Janus shares its orbit with the moon Epimetheus. Density waves due to Janus cause some of the bright bands seen in the A-Ring in this image. Prometheus and Atlas also produce waves in the rings, but their wave regions are too narrow to be seen here. The planet's shadow stretches all the way across the main rings in this view. The shadow has an oval shape now but over the next few years it will become more rectangular as the planet orbits the Sun and the angle Sunlight-Rings decreases.
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Atlas-PIA09818.jpgIn the Night...60 visiteCaption NASA:"Two of Saturn's ring moons draw close momentarily, before the inner of the pair moves off alone.
Atlas passes Prometheus (about 86 Km, or approx. 53 miles across, at center left) about once a month, then slowly and steadily pulls ahead of its slower moving sibling.
This view looks toward the unilluminated side of the Rings from about 23° above the Ring-Plane. The image was taken in visible light with the Cassini spacecraft narrow-angle camera on April 6, 2008. The view was acquired at a distance of approx. 1,6 MKN (such as about 975.000 miles) from Atlas.
Image scale is roughly 9 Km (about 6 miles) per pixel".MareKromium
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Dione-N00086879.jpgSpace Encounter: Dione and Prometheus (1)58 visitenessun commentoMareKromium
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Dione-N00086940.jpgSpace Encounter: Dione and Prometheus (2)54 visitenessun commentoMareKromium
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Dione-N00086957.jpgSpace Encounter: Dione and Prometheus (3)55 visitenessun commentoMareKromium
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Dione-N00086961.jpgSpace Encounter: Dione and Prometheus (4)95 visitenessun commentoMareKromium
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Dione-N00086962.jpgSpace Encounter: Dione and Prometheus (5)54 visitenessun commentoMareKromium
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Dione-N00086970.jpgSpace Encounter: Dione and Prometheus (6)54 visitenessun commentoMareKromium
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Janus&Prometheus-PIA08192.jpgJanus and Prometheus71 visiteSaturn's moons Janus and Prometheus look close enough to touch in this stunningly detailed view.
From just beneath the Ring-Plane, Cassini stares at Janus on the near side of the Rings, and Prometheus on the far side. The image shows that Prometheus is more elongated than Janus.
The view takes in the Cassini Division (about 4800 Km, or approx. 2980 miles wide), from its outer edge to about halfway across its width.
The image was taken in visible light with the Cassini spacecraft narrow-angle camera on April 29, 2006 at a distance of approx. 218.000 Km (such as about 135.000 miles) from Janus and approx. 379.000 Km (such as about 236.000 miles) from Prometheus. Image scale is about 1 Km (roughly 0,6 mile) per pixel on Janus and about 2 Km (a little more than 1 mile) per pixel on Prometheus.
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Janus-N00041468.jpgJanus and Prometheus55 visiteN00041468.jpg was taken on October 13, 2005 and received on Earth October 14, 2005. The camera was pointing toward JANUS - distant approximately 876.959 Km away - and the image was taken using the CL1 and CL2 filters. This image has not been validated or calibrated.
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Janus_Prometheus-PIA08994.jpgJanus & Prometheus60 visiteCaption NASA:"The Cassini spacecraft spies two of the small, irregular moons that patrol the outer edges of Saturn's Main Rings.
Prometheus (102 Km, or approx. 63 miles across) hugs the interior of the F-Ring right of center, while Janus (181 Km, or about 113 miles across) hangs in the foreground below center. Hints of craters can be seen on Janus.
This view looks toward the unilluminated side of the Rings from less than 1° above the Ring-Plane.
The image was taken in visible light with the Cassini spacecraft narrow-angle camera on June 14, 2007 at a distance of approx. 1,6 MKM (1 MMs) from Saturn.
Image scale is roughly 10 Km (about 6 miles) per pixel".MareKromium
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