Jupiter: the "King" and His Moons
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Jupiter-PIA14411.jpgJupiter, from Earth77 visitenessun commentoMareKromium
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Jupiter-PIA21974.jpgWhat a View!170 visitenessun commentoMareKromium
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Jupiter-PIA22936.jpgThe "Giant" from Earth147 visiteThis Earth-based observation of Jupiter and the South Tropical Disturbance approaching the Great Red Spot was captured on January, 26, 2018 by the Amateur Astronomer Christopher Go, who also processed the image.MareKromium
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Jupiter-PIA22948.jpgJupiter Abyss...176 visiteCaption NASA Originale:"NASA's Juno spacecraft captured this view of an area within a Jovian jet stream showing a vortex that has an intensely dark center. Nearby, other features display bright, high altitude clouds that have puffed up into the sunlight.
The color-enhanced image was taken at 12:55 a.m. PDT (3:55 a.m. EDT) on May 29, 2019, as the spacecraft performed its 20th science fly-by of Jupiter. At the time, Juno was about 9.200 miles (approx. 14.805,96 Km) from the Planet's cloud tops, above approximately 52° North Latitude.
Citizen scientists Gerald Eichstädt and Seán Doran created and named this image using data from the spacecraft's JunoCam imager".MareKromium
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Jupiter-PIA23437.jpgIo's Shadow161 visiteCaption NASA Originale:"Jupiter's volcanically active moon Io casts its shadow on the planet in this dramatic image from NASA's Juno Spacecraft. As with solar eclipses on the Earth, within the dark circle racing across Jupiter's cloud tops one would witness a full solar eclipse as Io passes in front of the Sun.
Such events occur frequently on Jupiter because it is a large planet with many moons. In addition, unlike most other planets in our solar system, Jupiter's axis is not highly tilted relative to its orbit, so the Sun never strays far from Jupiter's equatorial plane (+/- 3°). This means Jupiter's moons regularly cast their shadows on the planet throughout its year.
Juno's close proximity to Jupiter provides an exceptional fish-eye view, showing a small fraction near the planet's Equator. The shadow is about 2.200 miles (such as approx. 3.540,55 Km) wide, approximately the same width as Io, but appears much larger relative to Jupiter.
A little larger than Earth's Moon, Io is perhaps most famous for its many active volcanoes, often caught lofting fountains of ejecta well above its thin (?) Atmosphere.
Citizen scientist Kevin M. Gill created this enhanced-color image using data from the spacecraft's JunoCam imager. The raw image was taken on Sept. 11, 2019 at 8:41 p.m. PDT (11:41 p.m. EDT) as the Juno spacecraft performed its 22nd close fly-by of Jupiter. At the time the image was taken, the spacecraft was about 4.885 miles (approx. 7.861,64 Km) from the cloud tops at a Latitude of 21° North".
Nota: e per chi ha visto il famoso "2010 Odissea Due: l'Anno del Contatto", questa immagine dovrà "ricordare" qualcosa...MareKromium
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Jupiter-PIA23442.jpgOn the Limb...145 visiteCaption NASA Originale:"NASA's Juno spacecraft captured this impressive image revealing a band of swirling clouds in Jupiter's Northern Latitudes during Juno's close fly-by occurred on November, 3, 2019. Small pop-up storms can also be seen rising above the lighter areas of the clouds, most noticeably on the right side of the image.
This view provides scientists with high-resolution details — the spacecraft skimmed approximately 3.200 miles (such as about 5.149,9 Km) above Jupiter's cloud tops at the time it was taken.
Citizen scientist Björn Jónsson created this enhanced color image using data from the JunoCam camera. The picture, as we wrote above, was taken on November, 3, 2019 at 2:13 p.m. PST (5:13 p.m. EST) at a Latitude of about 38° North".MareKromium
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Jupiter-PIA23606.jpgThe "Eye" of Jupiter155 visiteCaption NASA Originale:"Swirling in Jupiter's Atmosphere for hundreds of years, the Great Red Spot is captured in this pair of close-up images from Juno's JunoCam Camera. The giant storm churns through Jupiter's Atmosphere, creating the turbulent flows to its West. On the West-side of the Great Red Spot itself, a sliver of red material is being pulled off the periphery. This is a recent, frequent, phenomenon first observed in ground-based data in 2017.
Two images have been mosaicked together by citizen scientist Kevin M. Gill to create this enhanced color composite. When they were taken on Feb. 12, 2019 at 10:24 a.m. PDT (1:24 p.m. EDT) and 10:29 a.m. PDT (1:29 p.m. EDT), Juno was about 43.500 miles (such as about 70.006,464 Km) above Jupiter's cloud tops. Features as small as 31 miles (approx. 49,889 Km) can be resolved in the images, allowing us to see structure in the interior of the Great Red Spot, as well as the fine texture of the white clouds in the South Tropical Zone below".MareKromium
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Jupiter-Red_Spot-BJ.jpgJupiter's Great Red Spot from Voyager 1 (Credit: NASA, JPL; Digital processing: Dr Björn Jónsson - IAAA)106 visiteCaption NASA:"It is a hurricane twice the size of the Earth. It has been raging at least as long as telescopes could see it, and shows no signs of slowing. It is Jupiter's Great Red Spot, the largest swirling storm system in the Solar System.
Like most astronomical phenomena, the Great Red Spot was neither predicted nor immediately understood after its discovery. Still today, details of how and why the Great Red Spot changes its shape, size, and color remain mysterious. A better understanding of the weather on Jupiter may help contribute to the better understanding of weather here on Earth.
The above image is a recently completed digital enhancement of an image of Jupiter taken in 1979 by the Voyager 1 Spacecraft as it zoomed by the Solar System's largest planet.
At about 117 AU from Earth, Voyager 1 is currently the most distant human made object in the Universe and expected to leave the entire Solar Heliosheath any time now".MareKromium
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Jupiter-Red_Spot-PCF-LXTT.jpgJupiter's Great Red Spot from Voyager 1 (Credit: NASA, JPL - Additional processing and color.: Dr Paolo C. Fienga - Lunexit Team)333 visiteCaption NASA:"It is a hurricane twice the size of the Earth. It has been raging at least as long as telescopes could see it, and shows no signs of slowing. It is Jupiter's Great Red Spot, the largest swirling storm system in the Solar System.
Like most astronomical phenomena, the Great Red Spot was neither predicted nor immediately understood after its discovery. Still today, details of how and why the Great Red Spot changes its shape, size, and color remain mysterious. A better understanding of the weather on Jupiter may help contribute to the better understanding of weather here on Earth.
The above image is a recently completed digital enhancement of an image of Jupiter taken in 1979 by the Voyager 1 Spacecraft as it zoomed by the Solar System's largest planet.
At about 117 AU from Earth, Voyager 1 is currently the most distant human made object in the Universe and expected to leave the entire Solar Heliosheath any time now".
MareKromium
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Jupiter-Storms.jpgColliding "Spots"55 visiteCaption NASA originale:"Two storms systems larger than Earth are nearly colliding right now on planet Jupiter. No one was sure what would happen, but so far both storms have survived. In the above false-color infrared image taken last week by the Gemini Observatory in Hawaii, the red spots appear white because their cloud tops tower above other clouds. Blue color represents lower clouds than white, while clouds colored red are the deepest. The smaller red spot, sometimes called Red Spot Jr. or just Oval BA, turned red earlier this year for reasons unknown. If both Jovian hurricanes continue to survive, they will surely pass near each other again in a few years since they revolve around Jupiter at different rates. Astronomers will continue to monitor Red Spot Jr. closely, however, to see if it will remain red when it rotates away from the larger Great Red Spot".
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Jupiter-Upper_Atmosphere-PIA16837-PCF-LXTT-IPF.jpgInside Jupiter's Atmosphere (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga/Lunar Explorer Italia/Italian Planetary Foundation)72 visiteThe Jupiter's "Dark Hot Spot" visible in this image - taken on December, 13 of the AD 2000 by the NASA - Cassini Spacecraft Imaging Science Subsystem (while Cassini was on its way to the Saturnian System) - is, in a manner of speaking, a "window" that opens deep inside into Jupiter's Upper Atmosphere. In fact, all around the Dark Hot Spot, there are Layers of higher Clouds, with shapes and colors that can help us to identify which Layer of the Jovian Amosphere they actually belong to.
For instance, the three small gray-bluish Clouds visible to to the right of the frame, are located in the Jovian Upper Troposphere, or perhaps even higher, into the Jovian Stratosphere. On the other hand, the large Gray Band located under the Dark Hot Spot (inside which can be - really - barely seen a few bizarre-looking dense Cloud Formations), is positioned in the Lower Troposphere of Jupiter. In addition, a high, gauzy orangish Haze seems to cover a large portion of the frame.
This picture (which is an Original NASA - Cassini Spacecraft b/w false-color frame published on the NASA - Planetary Photojournal with the ID n. PIA 16837) has been additionally processed and then re-colorized in Absolute Natural Colors (such as the colors that an average human eye would actually perceive if someone were onboard the NASA - CASSINI Spececraft and then looked outside, towards the Jupiter), by using an original technique created - and, in time, dramatically improved - by the Lunar Explorer Italia Team.
Note: we apologize to our Readers, but some of the details (i.e.: a so-called "Gyre" and a "Plume") which characterize part of the dense Cloud-Formations located in the Lower Troposphere of Jupiter can ONLY be seen by watching the false-color version of this frame, as edited by NASA, and found in the Planetary Photojournal. If seen through "human eyes", the aformentioned details disappear almost completely (only the Plume, in fact, can be barely spotted, left of center of the gray Clouds-Band).MareKromium
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Jupiter-V1-PIA01324_modest.jpgCrescent Jupiter (from Voyager 1)53 visiteCaption NASA originale:"This crescent view of Jupiter was taken by Voyager 1 on March 24, 1979. This image was taken through three color filters and recombined to produce the color image. This photo was assembled from three black and white negatives by the Image Processing Lab at Jet Propulsion Laboratory".
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