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ARP 295.jpgARP 295: a pair of galaxies with connecting "bridge"92 visite"...Naturam fraenare potes, sed vincere numquam..."
(Properzio)
"...Puoi frenare la (tua) Natura, ma (non potrai) mai vincerla..."
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Tempel1-PIA07881.jpgTempel-1, from Kitt Peak (pseudo-colors)59 visiteCaption NASA originale:"The Kitt Peak National Observatory's 2,1-meter telescope observed comet Tempel 1 on April 11, 2005, when the comet was near its closest approach to the Earth. A pinkish dust jet is visible to the SouthWest, with the broader neutral gas coma surrounding it. North is up, East is to the left and the field of view is about 80.000 Km wide. The Sun was almost directly behind the observer at this time. The red, green and blue bars in the background are stars that moved between the individual images.
This pseudo-color picture was created by combining three black and white images obtained with different filters. The images were obtained with the HB Narrowband Comet Filters, using CN (3870 A - shown in blue), C2 (5140 A - shown in green) and RC (7128 A - shown in red).
The CN and C2 filters capture different gas species (along with the underlying dust) while the RC filter captures just the dust".
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Tempel1-S-ImpactConfirmation.jpgTempel-1 from Kitt Peak National Obs.56 visiteOriginal caption:"The image was taken through an R band filter and has the smoothed dust light profile removed to enhance the jets. North is up, East to the left, the Sun at PA (Position Angle) 290 and the FOV is 2,5 arcmin (which is now 96.500 km at the comet)".
T. Farnham and Jianyang Li
(University of Maryland)
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The_Virgo_Galaxy_Cluster.jpgDiffuse lights inside the Virgo Cluster57 visite"...Qui sibi semitam non sapiunt, alteri mostrant viam..."
(Cicerone)
"...Coloro che non trovano la propria strada, indicano il cammino agli altri..."
Nota: una sentenza fortemente ironica e rivolta, si dice, agli indovini ed ai ciarlatani in genere che affollavano il Foro, il Circo e le case del volgo e, pur di mettere in tasca qualche moneta, si azzardavano a dare consigli e suggerimenti su materie delle quali non sapevano nulla. Un simile concetto venne ripreso, sebbene in un contesto diverso, dal Cantautore De Andrè il quale, nella ballata "Bocca di Rosa", dice "...Si sa che la gente dà buoni consigli, sentendosi come Gesù nel Tempio, si sa che la gente dà buoni consigli, se non può più dare il cattivo esempio...".
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