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| Piú viste - SOLAR SYSTEM |
S-433-Eros-Rocky_Outcrop-03.jpgTwilights on a "VERY (in)FAMOUS" Rocky Outcrop... (Image-Mosaic)206 visitenessun commentoMareKromium
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ZZ-ZZ-ZZ-ZZ-ZZ-ZZ-ZZ-ZZ-ZZ-ZZ-ZZ-ZZ-APOLLO 12 AS 12-46-6868 HR.jpgAS 12-46-6868 (HR) - Superimposed Photoartifacts?205 visiteLe piccole "bolle di luce" che avete visto accanto alla Bandiera Americana nel frame precedente oppure accanto ai cavi distesi sulla superficie della Luna o "in emersione" da un cratere in questo frame, sono la versione digitale (rectius: digitalizzata) della famosissima "flare-like light" del frame Apollo 11 AS 11-37-5455.
In quel caso ed in quel contesto, la piccola "bolla di luce" fu un'autentica e (quasi) unica "chicca" per gli Anomaly Hunters: un insperato benefit che fu concesso da una censura scarsa e poco filtrante. Come fare, quindi, a screditare la rivelazione di AS 11-37-5455? Riprendendo la medesima Anomalìa e riproponendola (incollandola digitalmente) come un VISTOSO Photoartifact in "n" altri frames in cui non è difficile notare l'incongruenza del dettaglio con il panorama ripreso.
E l'Anomaly Hunter inesperto o "troppo mite" si ritroverà a pensare:"Ma se questo è un photoartifact allora forse anche quello di AS 11-37-5455 doveva esserlo...". Ed il gioco è fatto: auto-screditando un numero "n" di frames innocui e privi di "spunti", si annulla il valore storico di UN frame estremamente periglioso.
E così via.
A nostro modo di vedere - e sperando di essere stati abbastanza chiari su questa spinosissima questione - i photoartifacts del frame precedente e di questo, sono TUTTI "Superimposed Photoartifacts".
L'ottimo Dr Barca ne ha trovati alcuni ma, credeteci, ce ne sono centinaia di altri: tutti ingannevoli, tutti creati ex-post.
E se Vi chiedete come facciamo ad esserne così sicuri, Vi diremo che di questi due frames (come di molti altri) abbiamo non solo le versioni HR, ma anche quelle Original and uncompressed ed in esse...Le "fiammelle volanti" NON ci sono!
Ovviamente.
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ZZ-Mercury-Global_View_of_the_Surface-PIA14399-PCF-LXTT.jpgLow Reflectance Material and Crater Rays (Enhanced Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)204 visiteThis image highlights some of the color features present on Mercury's Surface, such as Low Reflectance Material (LRM) and Crater Rays. Visible in the top left quadrant of this image is the named crater Moody, which has a prominent yellow-orange color on its Floor in this enhanced color image.
This image was acquired as part of MDIS's color base map. The color base map is composed of WAC images taken through eight different narrow-band color filters and will cover more than 90% of Mercury's Surface with an average resolution of 1 Km/pixel (0,6 miles/pixel). The highest-quality color images are obtained for Mercury's surface when both the Spacecraft and the Sun are overhead, so these images typically are taken with viewing conditions of low incidence and emission angles.
Date acquired: July, 3rd, 2011
Image Mission Elapsed Time (MET): 218154838, 218154854, 218154834
Image ID: 456233, 456237, 456232
Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
WAC filter: 9 (1000 nanometers), 7 (750 nanometers), 6 (430 nanometers) as red-green-blue
Center Latitude: 30,86° South
Center Longitude: 149,5° East
Resolution: 1712 meters/pixel
Scale: Moody crater is approx. 83 Km (~51,5 mi.) in diameter
Incidence Angle: 32,6°
Emission Angle: 0,5°
Phase Angle: 32,8°MareKromium
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Rhea-PIA14605-PCF-LXTT-IPF.jpgRhea (Absolute Natural Colors; credits for the additional process. and color.: Elisabetta Bonora and Marco Faccin - Lunar Explorer Italia)204 visiteCaption NASA:"Cassini looks over the heavily Cratered Surface of Rhea during the Spacecraft's Fly-By of this Saturnian moon that occurred on March 10, 2012. This view is centered on Terrain located at about 58° North Latitude and 84° West Longitude.
This image was taken in visible light with the Cassini spacecraft narrow-angle camera. The view was obtained at a distance of approximately 27.000 miles (such as about 43.000 Km) from Rhea and at a Sun-Rhea-Spacecraft, or Phase, Angle of 67°. Image scale is 827 feet (252 meters) per pixel".MareKromium
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Dione-N00199629-33-EB-MF-LXTT-IPF.jpgThe Many faces of Dione (Superdefinition and Natural Colors; credits for the additional process. and color.: Elisabetta Bonora and Marco Faccin/Lunar Explorer Italia/Italian Planetary Foundation)204 visiteThe Icy Surface of the Saturnian moon Dione includes, among other things, some Heavily Cratered Terrain, Moderately Cratered Plains, Lightly Cratered Plains, and several Areas which show the presence of deep and wide Tectonic Fractures (notice that all these Geological Features are well visible in this beautiful picture). The Heavily Cratered Terrain shows a number of Impact Craters which are larger than 100 Km (a little more than 62 miles) in diameter. The Plain Areas, on the other hand, tend to have Impact Craters which are less than 30 Km (such as about 18,6 miles) in diameter. Some of the Plains, however, are more Heavily Cratered than others. Much of the Heavily Cratered Terrain is located on the Trailing Hemisphere of Dione, while the less Cratered Plains are found on the Leading one.
This characteristic of Dione tells us just the opposite of what a few scientists would have expected; Shoemaker and Wolfe, for instance, proposed a Cratering Model for a Tidally Locked Satellite with the highest Cratering Rates on its Leading Hemisphere and the lowest ones on the Trailing Hemisphere. This Model, therefore (if it is one-hundred-percent correct - a fact, this one, that we have no way to prove with absolute cetainty), suggests that during the period of heavy bombardment, Dione was (better yet: could have been) tidally locked to Saturn in an opposite orientation as to the present one. Just because Dione is a relatively small Celestial Body (approx. 1120 Km - such as about 695,5 miles - in diameter), we can assume that an impact causing an approx. 35-Km-diameter Impact Crater should have been strong enough to alter the Course (---> Motion and Orientation) of the moon, as to its Parent Planet. Now, since there are so many Impact Craters on Dione which are way larger than 35 Km (such as about 21,7 miles), we can logically speculate that Dione itself might have changed both its Motion and Orientation a few times during the aforementioned period of heavy bombardment. Eventually, once that the bombardment ended, the moon was finally able to set itself on a definitive and stable Course around Saturn.
As a matter of fact, the Pattern of Cratering and the bright Albedo of its Leading Side suggest that Dione has remained in its current Course for several billion years. Like the Jovian moon Callisto, Dione's Impact Craters lack the high Central Features (---> Peaks/Uplifts) that are often seen, instead, on the Moon and Mercury; this circumstance, in our opinion, is probably due to slumping (---> Mass Wasting) of the weak Icy Crust over Geologic Times, but a final answer to this kind of question, as you can imagine, will probably never given with an absolute certainty. Just out of curiosity, if you pay special attention to the visible portion of the Limb of Dione, as it appears in this highly defined picture, you may realize that its shape is NOT, in fact, perfectly spherical.
This image, which is a combination of 5 (five) Original NASA - CASSINI Spacecraft b/w frames whose ID numbers are N00199629/30/31/32 and 33, has been additionally processed and then colorized in Natural Colors (such as the colors that a perfect human eye - or an Electronic Eye - would have perceived while looking at Dione from Cassini's vantage point) 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 Dione, each having a different Albedo (---> Reflectivity) and Chemical Composition. MareKromium
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Enceladus - artistic vision.jpgA Frozen and yet active volcano on Enceladus203 visiteUn vulcano (o magari un "geyser"?) ancora attivo sul corpo celeste più brillante dell'intero Sistema Solare: Encelado.
Un'intuizione, una 'licenza artistica' o magari un'imbeccata da parte di chi sa?!?
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Sedna-06.jpgSedna and other celestial bodies203 visiteGli astronomi A. Morbidelli ed H. Levison pensano che Sedna non si sia formato laddove attualmente si trova, nè che la sua posizione dipenda da interazioni con altri corpi celesti. Costoro ritengono che Sedna sia "figlio" di un Sistema Solare diverso dal nostro. Forse si tratta di un pianetino strappato ad un altro Sistema in transito accanto al nostro, oppure esso è il frutto dell'aggregazione di detriti cosmici rubati dal Sole ad una stella molto più piccola che gli è passata troppo vicina.
Siamo nel campo delle ipotesi più "spinte" e delle speculazioni scientifiche vere e proprie, come ovvio.
La risposta? Chissà...
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Titan-PIA12817-PCF-LXTT.jpgTitanian "Arrow-shaped Storm" (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)203 visiteCaption NASA:"A huge arrow-shaped Storm blows across the Equatorial Regions of Titan in this image from NASA's Cassini Spacecraft, chronicling the Seasonal Weather Changes on Saturn's largest moon.
This Storm created large effects in the form of dark -- likely wet -- areas on the Surface of Titan, as better visible in later images. After this Storm dissipated, Cassini observed significant changes on Titan's Surface at the Southern Boundary of the Dunefield named Belet.
Those changes covered an area of approx. 500.000 square Km (310.500 square miles), or roughly the combined area of Arizona and Utah in the United States.
The part of the Storm that is visible here measures approx. 1200 Km (745,2 miles) in length East-to-West. The wings of the Storm that trail off to the North/West and South/West from the Easternmost point of the storm are each approx. 1500 Km (931,5 miles) long.
Titan's weather has been changing since the August 2009 Equinox, when the Sun lays directly over the Equators of Saturn and its moons, and Storms at low Latitudes are now more common.
This image is a mosaic of two Cassini images. Most of this view is from an image of the storm captured on Sept. 27, 2010. However, because that image's framing cut off the South Polar Region of the Planet, a second image of Titan, taken on July 9, 2010, was used to fill in that portion of the celestial body. This second image was re-projected to the same Viewing Geometry as the first.
Lit Terrain seen here is in the area between the Trailing Hemisphere, which is the side of Titan that faces backward in its orbit around Saturn, and the side of Titan that always faces away from Saturn. North on Titan is up.
The images were taken with the Cassini Spacecraft narrow-angle camera using a spectral filter of Near-InfraRed Light centered at 938 nanometers. The view was acquired at a distance of approx. 1,3 MKM (807.300 miles) from Titan and at a sun-Titan-Spacecraft, or Phase, Angle of 44°.
Image scale is roghly 8 Km (4,968 miles) per pixel".MareKromium
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ZZ-Mercury-Global_View_of_the_Surface-PIA14081-PCF-LXTT.jpgNorth Polar Highly Cratered Terrain (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)203 visiteDate Acquired: March 29, 2011
Image Mission Elapsed Time (MET): 209895911
Image ID: 65416
Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
WAC filer: 7 (748 nanometers wavelength)
Center Latitude: 81,2° North
Center Longitude: 72,3° East
Resolution: 166 mt/pixel (0,10 miles/pixel)
Scale: the bottom of this image is about 84 Km (approx. 52 miles) acrossMareKromium
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ZZ-Mercury-Terminator-PIA14195-PCF-LXTT.jpgMercurian Terminator (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)203 visiteDate acquired: March 31, 2011
Image Mission Elapsed Time (MET): 210035203
Image ID: 71446
Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
WAC filter: 7 (748 nanometers)
Center Latitude: 83,17° South
Center Longitude: 250,9° East
Resolution: 1833 mt/pixel
Scale: the center of this image is about 1970 Km (approx. 1225 miles) acrossMareKromium
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Enceladus-PIA14578-PCF-LXTT.jpgEnceladus' Southern Regions (Absolute Natural Colors; credits for the additonal process. and color.: Dr Paolo C. Fienga - Lunar Explorer Italia)203 visiteCaption NASA:"This image was taken in Visible Light with the Cassini Spacecraft narrow-angle camera on Sept. 13, 2011. The view was acquired at a distance of approx. 26.000 miles (such as about 41.842,84 Km) from Enceladus and at a Phase Angle of 52°. Image scale is roughly 830 feet (253 meters) per pixel".
MareKromium
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Image030-93019302-3d1-2-red.jpgBlue Flares and the Invisible Crater: the "Third Frame" (3D)202 visitePurtroppo, però, mi sono bloccato subito per 2 motivi fondamentali: il primo è evidente in questo montaggio 3D della terza foto in cui si nota che il bagliore azzurro è (sembra essere) sulla verticale di un versante scosceso invisibile da questa angolazione e di cui non possediamo immagine alcuna - sebbene l’astronauta visibile al centro dell'immagine pare che stia fotografando a tutto spiano! Il secondo motivo - più generale - si riferisce al fatto che, a mio avviso, quasi tutte le foto delle missioni Apollo sono state pesantemente manipolate o sono (addirittura) false, con alcune eccezioni riguardanti dettagli insignificanti o immagini molto ravvicinate di campioni geologici (frames classificati sotto la denominazione "samples").
Come sempre, poi, la fantasia censoria degli "Scienziati" di Pasadena si è scatenata nelle visioni panoramiche, dove la linea dell’orizzonte (teoricamente) visibile viene artificiosamente abbassata così da NON far vedere qualunque cosa che sia più alta di 20 cm...
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