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| Piú votate - Titan: The "Foggy" Moon |
Titan-MF-EB-PCF-LXTT-IPF.jpgLakeland (Absolute Natural Colors; credits for the additional process. and color.: Elisabetta Bonora and Marco Faccin/LXTT/IPF)131 visiteUn esempio di come cambia la "visione" di un Mondo, quando si passa dai Colori Naturali (ossia i colori di un Corpo Celeste visti attraverso "Occhi Elettronici") ai Colori Naturali Assoluti (ossia i colori di un Corpo Celeste visti attraverso "Occhi Umani Medi"). Si noti, per Diritto ai Crediti e per Onestà Intellettuale, che la dizione "Colori Naturali Assoluti" è il prodotto di una tecnica di colorizzazione delle immagini totalmente basata sull'impiego di "Luci Virtuali", è un prodotto "Lunar Explorer Italia/Italian Planetary Foundation" e, per quanto attiene il suo "merito", poggia su assunzioni che, sebbene razionali e scientificamente accettabili (visione media, percezione dei colori media e percezione della luminosità media nell'occhio umano), nei fatti potrebbero rivelarsi errate. Questo solo per dire che noi NON pretendiamo di avere la Verità fra le mani, ma applichiamo un Approccio Razionale nella ricerca della Verità stessa.MareKromium
(4 voti)
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Titan-PIA17151-PCF-LXTT-IPF.jpgTitanian Restlessness (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga/Lunar Explorer Italia/Italian Planetary Foundation)82 visiteTitan's restless Upper Atmosphere puts on a display with the "detached" Haze to the North (---> the so-called "North Polar Hood" - top of image) and the Polar Vortex to the South.
This view looks toward the Saturn-facing Hemisphere of Titan; North is up and rotated 24° to the left. The image was taken with the NASA - Cassini Spacecraft Narrow-Angle Camera on August 20, 2013 using a Spectral Filter sensitive to Wavelengths of Near-InfraRed Light centered at 889 nanometers. The view was obtained at a distance of approximately 1,6 Million Miles (such as a little less than 2,575 Million KiloMeters) from Titan; the image scale is roughly 9 miles (such as approx. 14,484 Km) per pixel.
This frame (which is an Original NASA - CASSINI Spacecraft's b/w and NON Map-Projected image published on the NASA - Planetary Photojournal with the ID n. PIA 17151) has been additionally processed, contrast enhanced, magnified to aid the visibility of the details, Gamma corrected and then colorized - according to an educated guess (or, if you wish, an informed speculation) carried out by Dr Paolo C. Fienga - 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 outside, towards the Saturnian moon "Titan"), 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 other things, the existence of different Elements (Gases) present in the Atmosphere of Titan, 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 Titan - as it is in this frame - would appear, to an average human eye, a little bit lower than it has been shown (or, better yet: interpreted) here.MareKromium
(4 voti)
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Titan-River-PIA16197-PCF-LXTT-IPF.jpgTitanian River (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga/Lunar Explorer Italia/Italian Planetary Foundation)95 visiteThis image, taken by the NASA - Cassini Spacecraft on September 26, 2012, during its 87th close Fly-By of Titan, shows a vast River System located in the High Northern Regions of this always more intriguing and fascinating Saturnian moon. As a matter of fact, this is the first time that an image coming from Outer Space has revealed what appears to be a true River System that is so vast and structured, anywhere other than on our Home Planet Earth. The River Valley crosses Titan's North Polar Regions and runs directly into the Ligeia Mare: one of the 3 (three) Great Seas that have been so far discovered in the High Northern Latitudes of Titan. This River (still unnamed, but, in a way, very similar to the famous Terrestrial River known as Nile) stretches for more than 200 miles (such as approx. 322 Km).
Scientists have deduced that the River should be filled with actual liquid substances, because (among other things) it appears very dark along its entire extent in this High-Resolution Radar Image: a data, this one, that is indicative of the fact that we are in presence of a smooth Surface. These liquid substances are, presumably, Ethane mixed with Methane, the former having been already positively identified in the AD 2008 by Cassini's Visual and InfraRed Mapping Spectrometer at the Lake known as Ontario Lacus (this one, however, located in Titan's Southern Hemisphere). Even though some short, local Meander (---> a bend in a sinuous watercourse), is visible, the relative straightness of the River Valley suggests that it follows the trace of at least one Fault-line, just like other large Rivers running into the Southern Margin of Ligeia Mare do. Such Faults may lead to the opening of Basins and, perhaps (and in the end), to the formation of the Giant Seas themselves. North is toward the top of the image.
This frame (which is an Original NASA - CASSINI Spacecraft Radio-Image published on the NASA - Planetary Photojournal with the n. PIA 16197), since it is just a Radio-Image of the Titanian Surface and NOT a real view of it, has been colorized, according to an informed speculation carried out by Dr Paolo C. Fienga (LXTT-IPF), in what they could reasonably be its possible Absolute Natural Colors (such as the colors that a human eye would perceive if someone were onboard the NASA - CASSINI Spacecraft and, once the thick layer of Titanian Hazes and Fogs shall have been completely overcome, looked down, towards the Surface of Titan itself), by using an original technique created - and, in time, dramatically improved - by the Lunar Explorer Italia Team.MareKromium
(4 voti)
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Titan-Senkyo_Region-PIA11636-PCF-LXTT-IPF.jpgThrough the Fog: Senkyo (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga/Lunar Explorer Italia/Italian Planetary Foundation)111 visiteThe very low Albedo Feature (---> Region) known as Senkyo, is slightly visible here, through the haze of Titan's Atmosphere. Prominent dark areas found in Titan's Equatorial Region appear to contain vast and continuous Dunefields, discovered by the Cassini Radar Experiment and likely composed of Dust Particles that drop from Titan's unique, smoggy Atmosphere. The almost circular Feature visible to the left of the image center appears to belong to the Surface of Titan, but it could also be the result of either a peculiar configuration of some low Clouds, or a bizarre-looking image artifact. This view looks toward Saturn-facing Side of Titan and is centered on Terrain at about 1° South Latitude and 345° West Longitude. North on Titan is up, and rotated 10° to the right.
The image was taken with the NASA - Cassini Spacecraft Narrow-Angle Camera on October 12, 2009, using a spectral filter sensitive to Wavelengths of Near-InfraRed Light centered at 938 nanometers. The view was acquired at a distance of approximately 296.000 Km (such as about 184.000 miles) from Titan and at a Sun-Titan-Cassini Spacecraft, or Phase, Angle of 11°. Image scale is roughly 2 Km (such as a little more than 1 mile) per pixel.
This picture (which is an Original NASA - Cassini Spacecraft b/w frame published on the NASA - Planetary Photojournal and identified by the n. PIA 11636) has been additionally processed and then colorized, according to an informed speculation carried out by Dr Paolo C. Fienga (LXTT-IPF), 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 outside, towards the Saturnian moon Titan), 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 in the Atmosphere and on the Surface of Titan, 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 Albedo Feature seen in this frame would appear, to an average human eye, way lower than it has been shown (better yet: interpreted) here.MareKromium
(4 voti)
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Titan-Senkyo_Region-PIA11577-PCF-LXTT-IPF.jpgThrough the Fog: Senkyo (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga/Lunar Explorer Italia/Italian Planetary Foundation)106 visiteThe NASA - Cassini Spacecraft peers through the hazy Atmosphere of Titan for a close view of light and dark Terrain on Saturn's largest moon. This view, that is centered at 28° South Latitude and 334° West Longitude, shows us a small part of the Albedo Feature named Senkyo (actually it is a very large Region that the Planetary Scientists consider like a true Continent) which is located on the Trailing Hemisphere of Titan.
The image was taken with the NASA - Cassini Spacecraft Narrow-Angle Camera on July 9, 2009, using a spectral filter sensitive to Wavelengths of Near-InfraRed Light centered at 938 nanometers. The view was obtained at a distance of approximately 251.000 Km (such as about 156.000 miles) from Titan and at a Sun-Titan-Cassini Spacecraft, or Phase, Angle of 27°. Image scale is about 1 Km (such as 3281 feet) per pixel.
This picture (which is an Original NASA - Cassini Spacecraft b/w frame published on the NASA - Planetary Photojournal and identified by the n. PIA 11577) has been additionally processed and then colorized, according to an informed speculation carried out by Dr Paolo C. Fienga (LXTT-IPF), 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 outside, towards the Saturnian moon Titan), 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 in the Atmosphere and on the Surface of Titan, 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 Albedo Feature seen in this frame would appear, to an average human eye, way lower than it has been shown (better yet: interpreted) here.MareKromium
(4 voti)
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Titan-MF-EB-LXTT-03.jpgThe Titanian "South Polar Vortex" is still going on! (Superdefinition and Enhanced Natural Colors; credits for the additional process. and color.: Elisabetta Bonora and Marco Faccin /Lunar Explorer Italia/IPF)96 visitenessun commentoMareKromium
(4 voti)
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Titan-PIA14919.jpgTitan's South Polar Vortex (True Colors; credits: NASA/JPL-Caltech/Space Science Institute)78 visiteCaption NASA:"This frame (taken by the NASA - Cassini Spacecraft) shows us a South Polar Vortex or, in other words, a swirling Mass of Gas (and, perhaps, even other - heavier - Elements), which is located in the Upper Atmosphere, and approximately over the South Pole, of the Saturnian moon Titan. This Swirling Mass appears to complete one full rotation in about 9 (nine) hours - meaning a much faster period than the moon's 16 (sixteen)-days Rotation Period. The South Pole of Titan (which is about 3200 miles, or 5150 Km, across) is right under the Vortex.
Since the NASA - Cassini Spacecraft arrived in the Saturnian System, in 2004, Titan has shown a visible "Hood", such as an area of denser (when compared to the rest of the moon's Atmosphere) High Altitude Haze, high above the North Pole, but this is the first time that a similar phenomenon is seen above its South Pole. As a matter of fact, it was Northern Winter on Titan at the time of the arrival of the Cassini Spacecraft, and therefore much of its High Northern Latitudes was then in the darkness. But the Hood was high enough to still be illuminated by Sunlight. However, seasons have been changing since Saturn's August 2009 Equinox, which signaled the beginning of Spring in the Northern Hemisphere and the start of Fall (---> Autumn) in the Southern one, both for Saturn and for its very many moons. As a consequence of this season's changing, now the High Southern Latitudes are the ones moving into darkness, and the formation of this Vortex at Titan's South Pole may be related to the incoming Southern Winter and - maybe - the subsequent beginning of what could well be a South Polar Hood.
These new, more detailed images are only possible because of the NASA - Cassini Spacecraft newly inclined orbits, whose re-definition is part of the next phase of the Cassini Solstice Mission. Previously, Cassini was orbiting along the Equatorial Plane of Titan, and so the imaging team's pictures of the Polar Vortex (in the period between late March and mid-May), were taken from over Titan's Equator. At that time, however, the images taken by the Spacecraft only showed a brightening (or yellowing) of the detached Haze Layer located on the Limb (or Edge) of the Visible Disk of Titan, right over its South Polar Regions".MareKromium
(4 voti)
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Titan-MF-EB-LXTT-02.jpgNot an Aurora! (a GIF-Movie by Elisabetta Bonora and Marco Faccin - Lunar Explorer Italia/IPF)73 visiteUn suggerimento: mentre osservate la "nuvola" (quale che ne sia la natura) che ruota lentamente attorno al Polo Sud di Titano, provate a guardare anche il bordo (---> limb) del Corpo Celeste in oggetto e, in particolare, osservate le variazioni (a nostro parere eclatanti) della sua Coltre Atmosferica Alta. Potrebbe esistere una correlazione tra simili variazioni e l'Evento Anomalo Sud-Polare? Oppure le variazioni di consistenza, texture e luminosità della Coltre Atmosferica Alta di Titano sono solo un effetto ottico derivante dal cambio di Angolo di Fase (e cioè l'Angolo esitente tra il Sole, Titano e la Sonda CASSINI) ed evidenziato in forma curiosamente eclatante dal montaggio dei diversi frames che vanno a comporre il filmato GIF? Domande, domande, domande.....MareKromium
(4 voti)
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Titan-MF-EB-LXTT-00.jpgNot an Aurora! (Extremely Enhanced Natural Colors; credits for the additional process. and color.: Elisabetta Bonora and Marco Faccin - Lunar Explorer Italia/IPF)79 visiteL'ipotesi "Aurorale" del bizzarro Fenomeno occorso alle estreme Latitudini Sud di Titano è tramontata. Nuove ipotesi? Diciamo questo: accanto a quelle "classiche" (e cioè 1) nube alta di gas "pesanti" e 2) "nuvola colonnare" derivante da un impatto meteorico) ce ne potrebbe essere un'altra. Si potrebbe trattare, a nostro parere, di un Fenomeno Meteorologico Ciclico, collegato al verificarsi di una specifica configurazione spaziale tra Sole, Saturno e Titano. Nulla di esotico, sia chiaro: solo una particolare configurazione di "fase" che, da un lato, consente la creazione "fisica", su Titano, di una formazione nuvolosa semi-permanente e, dall'altro, consente la individuazione "ottica" della nuvola stessa (ovviamente a condizione di avere uno strumento "in loco" o quasi...). Pensiamoci sopra...MareKromium
(4 voti)
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Titan-W00074172-79-MF-EB-LXTT-IPF-3.jpgPossible Aurora at Titan (an Image-Mosaic by Elisabetta Bonora and Marco Faccin/Lunexit Team)141 visitenessun commentoMareKromium
(4 voti)
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Titan-W00074172-79-CB3Filter-MF-EB-LXTT-IPF.jpgFull Titan (Superdefinition and Enhanced Natural Colors; credits for the additional process. and color.: Elisabetta Bonora and Marco Faccin/Lunexit Team)80 visitenessun commentoMareKromium
(4 voti)
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Titan-MF-EB-LXTT-IPF.jpgThe Atmosphere of Titan (an Image-Mosaic by Elisabetta Bonora and Marco Faccin - Lunexit Team)135 visitenessun commentoMareKromium
(4 voti)
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