#greatredspot

Jupiter, the colossal gas giant, occupies a prominent role in our solar system as both a celestial marvel and a mystery. Often referred to as the "failed star" of our solar system, this awe-inspiring planet beckons us to explore its enigmatic nature and profound significance. In this article, we will delve deep into the heart of Jupiter, uncovering its secrets, its importance, and why it is often described as a "failed star."

The Giant Among Planets

Jupiter's Size and Mass

Jupiter is, without a doubt, the largest planet in our solar system. Its immense size dwarfs all other planets combined, and it boasts a mass greater than twice that of all other planets and celestial bodies combined. Its vastness is truly awe-inspiring, making it the reigning champion of the solar system.

A Gaseous Wonderland

Composition and Atmosphere

One of Jupiter's defining features is its gaseous composition, primarily consisting of hydrogen and helium. This distinct characteristic sets it apart from terrestrial planets like Earth. Its turbulent atmosphere is adorned with vivid bands of clouds, creating a mesmerizing spectacle for astronomers and space enthusiasts alike.

The Great Red Spot

Jupiter's Enigmatic Eye

The Great Red Spot, a colossal storm system on Jupiter, is a captivating feature that has puzzled scientists for centuries. This enormous anticyclonic storm has raged for at least 350 years and is twice the size of Earth. Despite its longevity, the precise reasons for its existence and its enduring nature remain a subject of scientific investigation.

Jupiter's Magnetic Dynamo

A Powerful Magnetic Field

Jupiter boasts one of the most formidable magnetic fields in the solar system. This massive magnetic dynamo generates an incredibly powerful magnetosphere, which extends far beyond the planet itself. It acts as a shield, protecting Jupiter and its moons from harmful solar radiation and cosmic particles.

The Failed Star Hypothesis

Jupiter's Starry Aspirations

Jupiter's "failed star" moniker stems from its nearly successful bid to become a star. Some scientists speculate that if Jupiter had been just a bit more massive, it could have ignited into a star, transforming our solar system into a binary star system. This tantalizing possibility has fueled fascination with Jupiter's potential role in the cosmos.

Jupiter's Impact on Our Solar System

Guardian of the Inner Planets

While Jupiter may not have become a star, its presence in our solar system is far from insignificant. In fact, it plays a pivotal role in shaping the dynamics of our celestial neighborhood. Jupiter's massive gravitational influence helps protect the inner planets, including Earth, from potential comet and asteroid impacts. Its presence is like a cosmic shield that has shielded our planet from countless cataclysmic events.

Jupiter's Moons - A Miniature Solar System

A Moonscape of Wonders

Jupiter's moon system is a veritable miniature solar system of its own, comprising over 79 confirmed moons and countless more awaiting confirmation. Among these, four Galilean moons – Io, Europa, Ganymede, and Callisto – stand out as some of the most intriguing celestial bodies in our solar system. Their diverse characteristics, including geologic activity, subsurface oceans, and potential habitability, have fascinated scientists and fueled the desire for future exploration.

NASA's Juno Mission

Unraveling Jupiter's Secrets

In 2011, NASA's Juno spacecraft embarked on a mission to study Jupiter's composition, gravity field, magnetic field, and polar magnetosphere. This ambitious mission has provided invaluable insights into the planet's interior structure and atmospheric composition, shedding light on Jupiter's role as a "failed star" and its influence on our solar system.

The Ongoing Fascination with Jupiter

Inspiring Future Generations

Jupiter continues to captivate astronomers, scientists, and space enthusiasts worldwide. Its intriguing characteristics, enigmatic features, and potential cosmic significance fuel our curiosity and inspire future generations of astronomers and space explorers.

Conclusion

In conclusion, Jupiter, the "failed star" of our solar system, stands as a testament to the wonders and mysteries of the cosmos. Its colossal size, turbulent atmosphere, and magnetic prowess make it an object of fascination and scientific inquiry. While it may not have ignited into a star, its role as a guardian of the inner planets and its influence on our solar system's dynamics are undeniable. As we continue to unravel its secrets, Jupiter remains a celestial giant that ignites our imaginations and beckons us to explore the boundless wonders of the universe.

Here is a list of some interesting facts about the planet Jupiter. A planet that catches the attention of all, by its size, storms and its surprising moons.

The mass of Jupiter is 318 times as massive as the Earth. In fact, Jupiter is 2.5 times more massive than all of the other planets in the Solar System combined.

Its gravity is so strong that a rocket would have to go an unthinkable 135,000 mph to leave.

The Great Red Spot on Jupiter is one of its most familiar features. This persistent anticyclonic storm, which is located south of its equator, measures between 24,000 km in diameter and 12–14,000 km in height. As such, it is large enough to contain two or three planets the size of Earth’s diameter. And the spot has been around for at least 350 years, since it was spotted as far back as the 17th century.

Jupiter's rings were discovered in 1979 by the passing Voyager 1 spacecraft, but their origin was a mystery. Data from the Galileo spacecraft that orbited Jupiter from 1995 to 2003 later confirmed that these rings were created by meteoroid impacts on small nearby moons.

Extending up to seven million kilometers in the Sun's direction and almost to the orbit of Saturn in the opposite direction, Jupiter's magnetosphere is the largest and most powerful of any planetary magnetosphere in the Solar System, and by volume the largest known continuous structure in the Solar System after the heliosphere.

Jupiter has a total of 69 natural satellites. The four largest are: Io, Europa, Ganymede and Callisto. However, it is estimated that the planet has over 200 natural satellites orbiting it. Almost all of them are less than 10 kilometers in diameter, and were only discovered after 1975, when the first spacecraft (Pioneer 10) arrived at Jupiter.

Jupiter Has Been Visited 8 Times By Spacecraft. Jupiter was first visited by NASA’s Pioneer 10 spacecraft in December 1973, and then Pioneer 11 in December 1974. Then came the Voyager 1 and 2 flybys, both of which happened in 1979. This was followed by a long break until Ulysses arrived in February 1992, followed by the Galileo space probe in 1995. Then Cassini made a flyby in 2000, on its way to Saturn. And finally, NASA’s New Horizons spacecraft made its flyby in 2007. NASA's Juno spacecraft is currently orbiting Jupiter.

Jupiter is the third brightest object in the Solar System, after Venus and the Moon.

Jupiter Is The Fastest Spinning Planet In The Solar System. For all its size and mass, Jupiter sure moves quickly. In fact, with an rotational velocity of 12.6 km/s (~7.45 m/s) or 45,300 km/h (28,148 mph), the planet only takes about 10 hours to complete a full rotation on its axis. And because it’s spinning so rapidly, the planet has flattened out at the poles a little and is bulging at its equator.

Jupiter Cannot Become A Star. Astronomers call Jupiter a failed star, but that’s not really an appropriate description. While it is true that, like a star, Jupiter is rich in hydrogen and helium, Jupiter does not have nearly enough mass to trigger a fusion reaction in its core. This is how stars generate energy, by fusing hydrogen atoms together under extreme heat and pressure to create helium, releasing light and heat in the process.

This is made possible by their enormous gravity. For Jupiter to ignite a nuclear fusion process and become a star, it would need more than 70 times its current mass. If you could crash dozens of Jupiters together, you might have a chance to make a new star. But in the meantime, Jupiter shall remain a large gas giant with no hopes of becoming a star. Sorry, Jupiter!

Sources: universetoday and wikipedia

Our Juno spacecraft will fly over Jupiter’s Great Red Spot on July 10 at 10:06 p.m. EDT. This will be humanity’s first up-close and personal view of the gas giant’s iconic 10,000-mile-wide storm, which has been monitored since 1830 and possibly existing for more than 350 years.

The data collection of the Great Red Spot is part of Juno’s sixth science flyby over Jupiter’s mysterious cloud tops. Perijove (the point at which an orbit comes closest to Jupiter’s center) will be July 10 at 9:55 p.m. EDT. 

At the time of perijove, Juno will be about 2,200 miles above the planet’s cloud tops. Eleven minutes and 33 seconds later…Juno will have covered another 24,713 miles and will be directly above the coiling crimson cloud tops of the Great Red Spot. The spacecraft will pass about 5,600 miles above its clouds. 

When will we see images from this flyby?

During the flyby, all eight of the spacecraft’s instruments will be turned on, as well as its imager, JunoCam. Because the spacecraft will be collecting data with its Microwave Radiometer (MWR), which measures radio waves from Jupiter’s deep atmosphere, we cannot downlink information during the pass. The MWR can tell us how much water there is and how material is moving far below the cloud tops.

During the pass, all data will be stored on-board…with a downlink planned afterwards. Once the downlink begins, engineering data from the spacecraft’s instruments will come to Earth first, followed by images from JunoCam.

The unprocessed, raw images will be located HERE, on approximately July 14. Follow @NASAJuno on Twitter for updates.

Did you know you can download and process these raw images?

We invite the public to act as a virtual imaging team…participating in key steps of the process, from identifying features of interest to sharing the finished images online. After JunoCam data arrives on Earth, members of the public can process the images to create color pictures. The public also helps determine which points on the planet will be photographed. Learn more about voting on JunoCam’s next target HERE.

JunoCam has four filters: red, green, blue and near-infrared. We get red, green and blue strips on one spacecraft rotation (the spacecraft rotation rate is 2 revolutions per minute) and the near-infrared strips on the second rotation. To get the final image product, the strips must be stitched together and the colors lined up.

Anything from cropping to color enhancing to collaging is fair game. Be creative!

Submit your images to [email protected] to be featured on the Mission Juno website!

Check out some of these citizen-scientist processed images from previous Juno orbits: 

Credit: Sean Doran (More)

Credit: Amelia Carolina (More)

Credit: Michael Ranger (More)

Credit: Jason Major (More)