| Piú viste - Saturn: the "Ringed Beauty" and His Moons |
Japetus-4228729983-MF-PCF-LXTT.jpgAbsolute Japetus (an Image-Mosaic in Absolute Natural Colors; credits: Drr Marco Faccin and Paolo C. Fienga - Lunexit Team)61 visitenessun commentoMareKromium
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Rhea-Janus-Prometheus-_EB-LXTT.gifThe Endless "Cosmic Race" (a GIF-Movie by Elisabetta Bonora - Lunexit Team)61 visitenessun commentoMareKromium
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Helene-PIA12653.jpgHelene61 visitenessun commentoMareKromium
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Cosmic_WaterFall-N00160095-N00160115_logo.gifCosmic Waterfall (a GIF-Movie by Dr Gianluigi Barca - Lunexit Team)61 visitenessun commentoMareKromium
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Rhea-IMG004754-br500-PCF-LXTT-IPF.jpgFarewell to Rhea (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga/Lunar Explorer Italia/Italian Planetary Foundation)61 visiteOn its fourth and final targeted Fly-By of Rhea, the NASA - Cassini Spacecraft provided, among others, this stunning view its ancient, tormented and heavily cratered Surface. Billions of years of impacts, in fact, have sculpted Rhea's Surface into the form we see today and, with a diameter of approx. 950 miles (such as about 1528,8 Km), Rhea is the second-largest moon of Saturn.
Scientists are still trying to understand some of the curious Surface Features visible in this image, including a curving, narrow Fracture, or Graben, which is a Block of Ground lower than its surroundings and bordered by Cliffs on both sides. This Feature looks remarkably recent, since it cuts most of the Impact Craters that it crosses, with only a few (and small) Impact Craters superimposed.
This view was taken - using the filters CL1 and CL2 - on March 9, 2013, at a distance of approximately 1.727 miles (such as about 2.779,33 Km) from the Surface of Rhea.
This frame (which is an Original NASA - Cassini Spacecraft b/w image identified by the serial n. IMG004754-br500) has been additionally processed, contrast enhanced, and then colorized in Absolute Natural Colors (such as the colors that a human eye would actually perceive if someone were onboard the NASA - Cassini Spacecraft and then looked down, towards the Surface of the Saturnian moon Rhea), by using an original technique created - and, in time, dramatically improved - by the Lunar Explorer Italia Team. Different colors, as well as different shades of the same color, mean, among others, the existence of different Elements present on the Surface of Rhea, each having a different Albedo (---> Reflectivity) and Chemical Composition.
Note: it is possible (but we, as IPF, have no way to be one-hundred-percent sure of such a circumstance), that the actual luminosity of the Surface of Rhea - as it is presented in this image - would appear, to an average human eye, way lower than it has been shown (or, better yet: interpreted) here.MareKromium
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TITAN-N00006532.jpgTitan from app.x 340.000 Km away - Lightnings on Titan or a scratch in the picture?60 visitenessun commento
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Saturn from Hubble Space Telescope.jpgSaturn from the Hubble Space Telescope60 visitenessun commento
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The Rings from approx. 143.000 Km.jpgThe Rings from app.x 143.000 Km60 visitenessun commento
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The Rings from approx. 127.000 Km.jpgThe Rings from app.x 127.000 Km60 visitenessun commento
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Saturn South-Pole from 22.000.000 Km.jpgThe South-Pole of Saturn from approx. 22.000.000 Km60 visitenessun commento
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The Rings from 6.279.000 Km.jpgThe Rings from app.x 6.279.000 Km60 visitenessun commento
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Saturn from approx. 9.000.000 Km (2).jpgWhat is this?!? (1)60 visiteEsistono centinaia di immagini negli archivi relativi alle raw-images della Sonda Cassini-Huygens che riprendono oggetti imprecisati che si trovano nello Spazio di Saturno. Nella maggior parte dei casi si tratta dei Satelliti (Maggiori e Minori) del Pianeta o di particelle cosmiche (raggi cosmici, forse) che lasciano strane tracce (punti e strisce). In altri casi, la risposta è lasciata al buon senso ed alla prudenza di chi guarda. Secondo noi questa luce è il Satellite Rhea, sovraesposto. E secondo Voi?...
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