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Ganymede Casts a Massive Shadow Across Jupiter in Spectacular New Image From NASA’s Juno Spacecraft – SciTechDaily

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Juno Captures Moon Shadow on Jupiter

Figure 1. Citizen scientist Thomas Thomopoulos created this enhanced-color image using raw data from the JunoCam instrument. At the time the raw image was taken, the Juno spacecraft was about 44,000 miles (71,000 kilometers) above Jupiter’s cloud tops, at a latitude of about 55 degrees south, and 15 times closer than Ganymede, which orbits about 666,000 miles (1.1 million kilometers) away from Jupiter. Credit: NASA/JPL-Caltech/SwRI/MSSS, Image processing by Thomas Thomopoulos © CC BY

<span class=glossaryLink aria-describedby=tt data-cmtooltip="

NASA
Established in 1958, the National Aeronautics and Space Administration (NASA) is an independent agency of the United States Federal Government that succeeded the National Advisory Committee for Aeronautics (NACA). It is responsible for the civilian space program, as well as aeronautics and aerospace research. It's vision is &quot;To discover and expand knowledge for the benefit of humanity.&quot;

” data-gt-translate-attributes='[{“attribute”:”data-cmtooltip”, “format”:”html”}]’>NASA’s Juno spacecraft captured this magnificent view of <span class=glossaryLink aria-describedby=tt data-cmtooltip="

Jupiter
Jupiter is the largest planet in the solar system and the fifth planet from the sun. It is a gas giant with a mass greater then all of the other planets combined. Its name comes from the Roman god Jupiter.

” data-gt-translate-attributes='[{“attribute”:”data-cmtooltip”, “format”:”html”}]’>Jupiter during the mission’s 40th close pass by the giant planet on February 25, 2022. The large, dark shadow on the left side of the image was cast by Jupiter’s moon Ganymede.

Citizen scientist Thomas Thomopoulos created this enhanced-color image using raw data from the JunoCam instrument (Figure 1). At the time the raw image was taken, the Juno spacecraft was about 44,000 miles (71,000 kilometers) above Jupiter’s cloud tops, at a latitude of about 55 degrees south, and 15 times closer than Ganymede, which orbits about 666,000 miles (1.1 million kilometers) away from Jupiter.

An observer at Jupiter’s cloud tops within the oval shadow would experience a total eclipse of the Sun. Total eclipses are more common on Jupiter than Earth for several reasons. Jupiter has four major moons (Galilean satellites) that often pass between Jupiter and the Sun: in seven days, Ganymede transits once; Europa, twice; and Io, four times. And since Jupiter’s moons orbit in a plane close to Jupiter’s orbital plane, the moon shadows are often cast upon the planet.

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Ganymede’s Shadow Projected Onto Globe of Jupiter

Figure 2. Illustration of the approximate geometry of the Ganymede’s shadow projected onto a globe of Jupiter.
Credit: NASA/JPL-Caltech/SwRI/MSSS, Image processing by Brian Swift © CC BY

JunoCam captured this image from very close to Jupiter, making Ganymede’s shadow appear especially large. Figure 2, created by citizen scientist Brian Swift using JunoCam data, illustrates the approximate geometry of the visible area, projected onto a globe of Jupiter.

JunoCam’s raw images are available for the public to peruse and process into image products at https://missionjuno.swri.edu/junocam/processing.

Jupiter is the largest planet in the Solar System and the fifth planet from the Sun. It is a gas giant with a mass that is more than two and a half times that of all the other planets in the Solar System combined, but is only about one-thousandth the mass of the Sun. Jupiter, behind the Moon and <span class=glossaryLink aria-describedby=tt data-cmtooltip="

Venus
Venus, the second planet from the sun, is named after the Roman goddess of love and beauty. After the moon, it is the second-brightest natural object in the night sky. Its rotation (243 Earth days) takes longer than its orbit of the Sun (224.7 Earth days). It is sometimes called Earth's &quot;sister planet&quot; because of their similar composition, size, mass, and proximity to the Sun. It has no natural satellites.

” data-gt-translate-attributes='[{“attribute”:”data-cmtooltip”, “format”:”html”}]’>Venus, is the third brightest natural object in the Earth’s night sky, and it has been noticed since prehistoric times. It was named after Jupiter, the Roman god and king of the gods.

Ganymede, a satellite of the planet Jupiter, is the largest and most massive of the Solar System’s moons. It is the ninth-biggest object in the Solar System (including the Sun) and the largest without a significant atmosphere. It has a diameter of 5,268 kilometers (3,273 miles), making it 26 percent larger by volume than Mercury, but it is only 45 percent as massive. 

Figure 1. Citizen scientist Thomas Thomopoulos created this enhanced-color image using raw data from the JunoCam instrument. At the time the raw image was taken, the Juno spacecraft was about 44,000 miles (71,000 kilometers) above Jupiter’s cloud tops, at a latitude of about 55 degrees south, and 15 times closer than Ganymede, which orbits about 666,000 miles (1.1 million kilometers) away from Jupiter. Credit: NASA/JPL-Caltech/SwRI/MSSS, Image processing by Thomas Thomopoulos © CC BY
<span class=glossaryLink aria-describedby=tt data-cmtooltip="

NASA
Established in 1958, the National Aeronautics and Space Administration (NASA) is an independent agency of the United States Federal Government that succeeded the National Advisory Committee for Aeronautics (NACA). It is responsible for the civilian space program, as well as aeronautics and aerospace research. It's vision is &quot;To discover and expand knowledge for the benefit of humanity.&quot;

” data-gt-translate-attributes='[{“attribute”:”data-cmtooltip”, “format”:”html”}]’>NASA’s Juno spacecraft captured this magnificent view of <span class=glossaryLink aria-describedby=tt data-cmtooltip="

Jupiter
Jupiter is the largest planet in the solar system and the fifth planet from the sun. It is a gas giant with a mass greater then all of the other planets combined. Its name comes from the Roman god Jupiter.

” data-gt-translate-attributes='[{“attribute”:”data-cmtooltip”, “format”:”html”}]’>Jupiter during the mission’s 40th close pass by the giant planet on February 25, 2022. The large, dark shadow on the left side of the image was cast by Jupiter’s moon Ganymede.
Citizen scientist Thomas Thomopoulos created this enhanced-color image using raw data from the JunoCam instrument (Figure 1). At the time the raw image was taken, the Juno spacecraft was about 44,000 miles (71,000 kilometers) above Jupiter’s cloud tops, at a latitude of about 55 degrees south, and 15 times closer than Ganymede, which orbits about 666,000 miles (1.1 million kilometers) away from Jupiter.
An observer at Jupiter’s cloud tops within the oval shadow would experience a total eclipse of the Sun. Total eclipses are more common on Jupiter than Earth for several reasons. Jupiter has four major moons (Galilean satellites) that often pass between Jupiter and the Sun: in seven days, Ganymede transits once; Europa, twice; and Io, four times. And since Jupiter’s moons orbit in a plane close to Jupiter’s orbital plane, the moon shadows are often cast upon the planet.

try{window._mNHandle.queue.push(function(){window._mNDetails.loadTag(“974871025″,”600×250″,”974871025”);});}
catch(error){}
Ganymede’s Shadow Projected Onto Globe of Jupiter

Figure 2. Illustration of the approximate geometry of the Ganymede’s shadow projected onto a globe of Jupiter.
Credit: NASA/JPL-Caltech/SwRI/MSSS, Image processing by Brian Swift © CC BY

Figure 2. Illustration of the approximate geometry of the Ganymede’s shadow projected onto a globe of Jupiter.
Credit: NASA/JPL-Caltech/SwRI/MSSS, Image processing by Brian Swift © CC BY
JunoCam captured this image from very close to Jupiter, making Ganymede’s shadow appear especially large. Figure 2, created by citizen scientist Brian Swift using JunoCam data, illustrates the approximate geometry of the visible area, projected onto a globe of Jupiter.
JunoCam’s raw images are available for the public to peruse and process into image products at https://missionjuno.swri.edu/junocam/processing.
Jupiter is the largest planet in the Solar System and the fifth planet from the Sun. It is a gas giant with a mass that is more than two and a half times that of all the other planets in the Solar System combined, but is only about one-thousandth the mass of the Sun. Jupiter, behind the Moon and <span class=glossaryLink aria-describedby=tt data-cmtooltip="

Venus
Venus, the second planet from the sun, is named after the Roman goddess of love and beauty. After the moon, it is the second-brightest natural object in the night sky. Its rotation (243 Earth days) takes longer than its orbit of the Sun (224.7 Earth days). It is sometimes called Earth's &quot;sister planet&quot; because of their similar composition, size, mass, and proximity to the Sun. It has no natural satellites.

” data-gt-translate-attributes='[{“attribute”:”data-cmtooltip”, “format”:”html”}]’>Venus, is the third brightest natural object in the Earth’s night sky, and it has been noticed since prehistoric times. It was named after Jupiter, the Roman god and king of the gods.
Ganymede, a satellite of the planet Jupiter, is the largest and most massive of the Solar System’s moons. It is the ninth-biggest object in the Solar System (including the Sun) and the largest without a significant atmosphere. It has a diameter of 5,268 kilometers (3,273 miles), making it 26 percent larger by volume than Mercury, but it is only 45 percent as massive. 

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Interesting.
As far as I know Jupiter is a Gaseous Giant Planet. Sunlight falling on it directly probably passes right through like Neutrinos.
So the Satellites become important. The many satellites of Jupiter server multiple Purpose. It casts a Shadow on the Gaseous Giant (Shadow = Reflected Darkness ) so that the visibility of the Giant Gaseous Planet is enhanced. Darkness plus Brightness along with contrast enhances visibility.
Would be interesting to see the opposite effect on Saturn and its rings and its many moons. Much more complexity involved.
Ever wondered why Satellites revolve around the Planets ? Are they designed to protect the planets from stray , runaway asteroids and such?
Gravity probably place a role. The Forces of Gravity probably vary depending on the reaction to the approaching body. I suspect gravitational forces can be used to attract as well as repel other bodies just like Magnetic Forces with North and South Poles.
Like repels and unlike attracts. Probably the secret to creating Tractor Beams!
Views expressed are personal and not binding on anyone.
Were you high when you wrote this?
If so, I want some of his stuff, it seems GROOVY
Congratulations on “least self-explanatory illustration” award for Figure 2. What is this supposed to be telling us?
Dude, what part of “This is a section of Jupiter we photographed laid over a Jupiter-sized globe and the photo includes a shadow Ganymede was casting” don’t you get? You did read the article, right? You can read, right?
Juno’s orbit brought it close enough to Jupiter that it couldn’t see an entire hemisphere of the planet (similar to the view of Earth from the ISS). So, they mapped the portion of the hemisphere it could see onto a Jupiter-sized globe to give you a sense of how much of the planet it was seeing at once when the photo was taken. It’s easy to see how someone might misinterpret the original photo as showing an entire hemisphere, in which case Ganymede’s shadow would appear much larger relative to the planet than it really is.
Uh..since when did shadows become “Massive”? It’s a shadow..
So, when someone says they have a “massive headache,” do you also interpret that literally?
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