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Why is Jupiter so bright? The icy asteroid that became a gas giant this week




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A picture of the civic scientist Kevin Gill and JunoCam of Jupiter's Great Red Spot.

NASA / JPL-Caltech / SwRI / MSSS / Kevin M. Gill © CC BY

Jupiter is a giant, the giant, hence the name Jupiter, also called Jupiter, was the god of heaven and thunder, the king of gods in Roman mythology [1

9659004] The Giant Planet ( it is eleven times the size of the earth), which bears its name today, achieves "opposition" when the earth lies exactly between it and the sun, as a result it lights up tonight for the whole year and for a few weeks it becomes brightest wonderful object remain when you attach a small telescope or a binoculars tonight it will rise in the east at sunset and will rise in sunrise at the west for a few weeks it will be practically visible all night!

The orbits of theeight major planets orbiting the Sun, as well as the asteroids and comets e, from the inside out, Mercury, Venus, Earth, and Mars. The four outer planets are Jupiter, Saturn, Uranus and Neptune from the inside out.

Getty

It's the fifth planet in the solar system, but has it always been where it is now? How did it get so damn big? At the time of writing, Jupiter has 79 moons, by far the strongest gravitational force of any planet in the solar system, and even Saturn-like rings (though harder to see). However, research suggests Jupiter began life as an ice asteroid far from the sun. Here is the incredible story of where Jupiter came from and how he came to where he is now.

The concept of this artist shows the planet KELT-9b, an example of a "hot Jupiter" or a gas giant planet, which is very close to his parent star. KELT-9b is an extreme example of a hot Jupiter with daytime temperatures of up to 4,300 degrees Celsius.

NASA / JPL-Caltech

Jupiter Journey

So-called "hot Jupiter" are everywhere except our solar system. As any exoplanet hunter will tell you, the hiding place behind the search for a Jupiter-sized planet is minimal. Everyone wants to find Earth-sized exoplanets. Hot Jupiter circle near their host star, while our own planet Jupiter is the fifth planet. "Jupiter formed far from the Sun and then moved to its current orbit," says Simona Pirani, PhD student of astronomy at the University of Lund and lead author of & # 39; consequences of planetary migration on the small bodies of the planet Early Solar System " Advanced computer simulations show that Jupiter was formed four times farther from the Sun than its current location indicates with a hint of burgundy color and matte surfaces that reflect little sunlight.

NASA / JPL Caltech

Jupiter and the Trojans

The scientists tracked the migration of Jupiter through a group of asteroids that are believed to represent original material that has formed the outer planets are Trojan asteroids two large clusters of thousands of asteroids that divide Jupiter's orbit around the sun he is Jupiter, but there is about 50 percent more in front of the gas giant than behind it. "This asymmetry has always been a mystery in the solar system," says Anders Johansen, a professor of astronomy at Lund University. By restoring the Jupiter Formation and gradually taking in the Trojan asteroids through the planet, the researchers were able to calculate that the asymmetry could only have occurred if Jupiter formed four times farther out in the solar system before migrating to where it was Right now, he prefers more Trojans than behind him.

Artist's concept of Lucy spacecraft at the Trojan asteroid.

NASA] From the icy asteroid to the gas giant

According to the calculations, the migration of Jupiter lasted about 700,000 years, about two to three million years after Jupiter began his life as an ice asteroid Jupiter's Journey started as a young planet with no gas atmosphere as it moved in and consumed the Trojan asteroids that probably m ake-up its core.

This diagram shows the orbit of Lucy. The spacecraft's path (green) is displayed in a frame of reference where Jupiter remains stationary, giving the trajectory the shape of a pretzel. After launching in October 2021, Lucy has two fly-bys on Earth before encountering her Trojan targets. In the L4 cloud, Lucy flies from 2027 to 2028 past (3548) Eurybates (white), (15094) Polymele (pink), (11351) Leucus (red) and (21900) Orus (red). After diving back over the earth, Lucy will visit the L5 Cloud and in 2033 will encounter the (617) Patroclus Menoetius binary (pink). As a bonus, Lucy flies on the way to the L4 in 2025 with a small main belt asteroid (52246) Donaldjohanson (white), named after the discoverer of the Lucy fossil. After flying with the Patroclus Menoetius Binary in 2033, Lucy will switch back and forth between the two Trojan Clouds every six years.

Southwest Research Institute

Has NASA ever visited the Jupiter Trojans?

No, but plans are in progress. In October 2021, the NASA spacecraft Lucy launches a 12-year mission to learn more about the formation of the planets and the formation of the solar system with six Jupiter Trojans. "By studying the Trojans, we can learn a lot about Jupiter's core and formation," says Anders Johansen. The authors of the study also suspect that the gas giant Saturn and the ice giants Uranus and Neptune could have migrated in a similar way.

] Io, Calisto, Ganymede and Europe, the four largest moons of Jupiter, can be seen with any pair of binoculars.

SkySafari

Observation of Jupiter in the Opposition

Jupiter is quite low in the south (seen from the northern hemisphere) in the constellation Ophiuchus, the "forgotten" thirteenth constellation, its ammonia cloud bands (Telescope) and its four largest "Galilean" moons (each binoculars) are easily recognizable) Io, Calisto, Ganymede and Europe.

It is often possible to see the shadow of Jupiter's Moons on its clouds.

SkySafari

When to Observe Jupiter at the Opposition

Although it is an appeal on June 10, 2 019, this is the middle of the optimal viewing period. So now it's always good, and that's the rest of June and July.

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A picture of the civic scientist Kevin Gill and JunoCam of Jupiter's Great Red Spot.

NASA / JPL-Caltech / SwRI / MSSS / Kevin M. Gill © CC BY

Jupiter is a giant, The giant, hence the name Jupiter, also called Jupiter, was the god of heaven and thunder, the king of the gods in Roman mythology.

The giant planet (it is eleven times the size of the earth ), which bears his name today, achieves "opposition" when the earth lies exactly between her and the sun, so that he shines brightest for the entire world tonight It will remain a wonderful object for a few weeks, around a small telescope or Tonight it will rise to the east at sunset and rise to the west at sunrise, for some weeks it will be virtually visible all night and what a sight!

The paths of the eight great planets that make up the S and the asteroids and comets: the four inner planets are Mercury, Venus, Earth and Mars from the inside out. The four outer planets are Jupiter, Saturn, Uranus and Neptune from the inside out.

Getty

It's the fifth planet in the solar system, but has it always been where it is now? How did it get so damn big? At the time of writing, Jupiter has 79 moons, by far the strongest gravitational force of any planet in the solar system, and even Saturn-like rings (though harder to see). However, research suggests Jupiter began life as an ice asteroid far from the sun. Here is the incredible story of where Jupiter came from and how he came to where he is now.

The concept of this artist shows the planet KELT-9b, an example of a "hot Jupiter" or a gas giant planet orbiting its parent star very close to it. KELT-9b is an extreme example of a hot Jupiter with daytime temperatures of up to 4,300 degrees Celsius.

NASA / JPL-Caltech

Jupiter's Journey

Jupiter "is everywhere except in our solar system. As any exoplanet hunter will tell you, the hiding place behind the search for a Jupiter-sized planet is minimal. Everyone wants to find Earth-sized exoplanets. Hot Jupiter circle near their host star, while our own planet Jupiter is the fifth planet. "Jupiter formed far from the Sun and then moved to its current orbit," says Simona Pirani, PhD student of astronomy at the University of Lund and lead author of & # 39; consequences of planetary migration on the small bodies of the planet early solar system. Advanced computer simulations show that Jupiter was formed four times farther from the Sun than its current position indicates.

The Jovian Trojans, asteroids orbiting the Sun in the same orbit as Jupiter, are equally dark with a hint of burgundy color and matte surfaces that reflect little sunlight.

NASA / JPL-Caltech

Jupiter and the Trojans

The scientists tracked the migration of Jupiter through a group of asteroids that are believed to represent primitive material known as the Trojan asteroids are two large clusters of thousands of asteroids that divide Jupiter's orbit around the sun beyond Jupiter, but there are about 50 percent more in front of the gas giant than behind it. "This asymmetry has always been a mystery in the solar system," says Anders Johansen, a professor of astronomy at Lund University. By restoring the Jupiter Formation and gradually taking in the Trojan asteroids through the planet, the researchers calculated that the asymmetry could only have occurred if Jupiter was formed four times farther out in the solar system before it migrated to where it is now [more] Trojan horses before it looked like behind

Artist concept of Lucy spacecraft at the Trojan asteroid

NASA [19659003] From the icy asteroid to the gas giant

According to the calculations, the migration of Jupiter took about 700,000 years About two to three million years after Jupiter began his life as an ice asteroid Jupiter's journey began as a young planet with no gas atmosphere as it moved in and consumed the Trojan asteroids that probably m ake-up its core.

This diagram shows the orbit of Lucy. The spacecraft's path (green) is displayed in a frame of reference where Jupiter remains stationary, giving the trajectory the shape of a pretzel. After launching in October 2021, Lucy has two fly-bys on Earth before encountering her Trojan targets. In the L4 cloud, Lucy flies from 2027 to 2028 past (3548) Eurybates (white), (15094) Polymele (pink), (11351) Leucus (red) and (21900) Orus (red). After diving back over the earth, Lucy will visit the L5 Cloud and in 2033 will encounter the (617) Patroclus Menoetius binary (pink). As a bonus, Lucy flies on the way to the L4 in 2025 with a small main belt asteroid (52246) Donaldjohanson (white), named after the discoverer of the Lucy fossil. After flying with the Patroclus Menoetius Binary in 2033, Lucy will switch back and forth between the two Trojan Clouds every six years.

Southwest Research Institute

Has NASA ever visited the Jupiter Trojans?

No, but plans are in progress. In October 2021, the NASA spacecraft Lucy launches a 12-year mission to learn more about the formation of the planets and the formation of the solar system with six Jupiter Trojans. "By studying the Trojans, we can learn a lot about Jupiter's core and formation," says Anders Johansen. The authors of the study also suspect that the gas giant Saturn and the ice giants Uranus and Neptune could have migrated in a similar way.

] Io, Calisto, Ganymede and Europe, the four largest moons of Jupiter, can be seen with any pair of binoculars.

SkySafari

Observation of Jupiter in the Opposition

Jupiter is quite low in the south (seen from the northern hemisphere) in the constellation Ophiuchus, the "forgotten" thirteenth constellation, its ammonia cloud bands (Telescope) and its four largest "Galilean" moons (each binoculars) are easily recognizable) Io, Calisto, Ganymede and Europe.

It is often possible to see the shadow of Jupiter's moons on its clouds.

SkySafari

Observing Jupiter at the Opposition

Although it is an appeal on June 10, 2 019, this is the middle of the optimal viewing period. So it's always good now, and the rest of June and July.


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