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Comets-Schwassmann_Wachmann_1-07.jpgComet Schwassmann-Wachmann 3: the whole "crumbling" Comet (1)63 visiteThis false-color mosaic of crumbling Comet Schwassmann-Wachmann 3 spans about 6° (about 12 full moons) along the Comet's orbit. Recorded on May 4-6, 2006, by an infrared camera on board the Spitzer Space Telescope, the picture captures about 45 of the 60 or more alphabetically cataloged large Comet Fragments. The brightest fragment at the upper right of the track is Fragment "C" (frame 1). Bright Fragment "B" is below and left of center (frame 2). Looking for clues to how the Comet broke up, Spitzer's infrared view also captures the trail of dust left over as the Comet deteriorated during previous passes. Emission from the dust particles warmed by sunlight appears to fill the space along the cometary orbit. The fragments are near their closest approach in the coming days, about 10 MKM away, and none pose any danger to our fair Planet.
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Comets-Schwassmann_Wachmann_1-08.jpgComet Schwassmann-Wachmann 3: the whole "crumbling" Comet (2)71 visitenessun commento
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Comets-Schwassmann_Wachmann_1-09.jpgComet Schwassmann-Wachmann 3: the whole "crumbling" Comet (3)65 visitenessun commento
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Comets-Schwassmann_Wachmann_1-10.jpgComet Schwassmann-Wachmann 3: the whole "crumbling" Comet (4)75 visitenessun commento
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Comets-Shoemaker-Levy_9_before_collision.jpgThe Shoemaker-Levy 9 Comet just before colliding with Jupiter176 visiteCaption NASA originale:"The comet's original single nucleus was torn to pieces by Jupiter's strong gravity during a close encounter with the Solar System's largest planet in 1992. The pieces are seen in this composite of HST images to be "pearls" strung out along the comet's orbital path.
In July of 1994 these pieces collided with Jupiter in a rare and spectacular series of events".
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Comets-Wesley-Jupiter_Impact-1.jpgCometary Impact on Jupiter 128 visitenessun commentoMareKromium
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Comets-Wesley-Jupiter_Impact-2.jpgCometary Impact on Jupiter 185 visitenessun commentoMareKromium
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Comets-Wild_2-00.jpgApproaching Wild 2 (1)64 visiteCaption NASA originale:"This image was taken during the close approach phase of Stardust's Jan 2, 2004 flyby of comet Wild 2. It is a distant side view of the roughly spherical comet nucleus. One hemisphere is in sunlight and the other is in shadow analogous to a view of the quarter moon. Several large depressed regions can be seen. Comet Wild 2 is about 5 Km (3,1 miles) in diameter".
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Comets-Wild_2-01.jpgApproaching Wild 2 (2)70 visiteCaption NASA originale:"On January 2, 2004 NASA's Stardust spacecraft made a close flyby of comet Wild 2.
Among the equipment the spacecraft carried on board was a navigation camera.
This is the 34th of the 72 images taken by Stardust's navigation camera during close encounter. The exposure time was just 10 milliseconds".
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Comets-Wild_2-02.jpgWild 2 - stereo image pair75 visitenessun commento
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Comets-Wild_2-03.jpgSome surface features of Wild 271 visiteCaption NASA originale:"These images taken by NASA's Stardust spacecraft highlight the diverse features that make up the surface of comet Wild 2. The three pictures on the left side show a variety of small pinnacles and mesas seen on the limb of the comet. The picture on the right shows the location of a 2-Km (1,2-mile) series of aligned scarps, or cliffs, that are best seen in the stereo images".
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Comets-Wild_2-04.jpgThe map of Comet Wild 266 visiteUna mappa - non particolarmente dettagliata ma comunque idonea a farci vedere e riconoscere le aree maggiormente importanti - della Cometa Wild 2. La mappa in oggetto è stata ottenuta sulla base delle riprese della cometa effettuate dalla Sonda "Stardust" il 2 Gennaio 2004 e, in particolare, impiegando il frame che Vi mostriamo nel quadro successivo.
I nomi indicati per le diverse aree di Wild 2 sono quelli utilizzati dallo "Stardust Team".
Da notare, infine, che il "bacino Shoemaker" potrebbe (a dispetto delle apparenze) NON aver avuto origine da un impatto.
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