The magnetic field of Jupiter indicates that its core must contain large amounts of

The magnetic field of Jupiter is tilted relative to the planet's rotation axis but not offset from its center The magnetic field of Jupiter indicates that its core must contain large amounts of

The magnetic field of Jupiter indicates that its core must contain large amounts of (A) solid iron. (B) liquid iron. (C) a solid that can conduct electricity. (D) a liquid that can conduct electricity. (E) solid rock The magnetic field of Jupiter is tilted relative to the planet's rotation axis but not offset from its center. The magnetic field of Jupiter indicates that its core must contain large amounts of

The exceptionally large volume of metallic hydrogen is likely responsible for the great strength of Jupiter's magnetic field. The relative proximity of the electrically conductive region to the surface may explain why Jupiter's magnetic field is more complex than Saturn's. View chapter Purchase book Interiors of the Giant Planet The surface magnetic field of Jupiter has a greater contribution from higher order terms (quadrupole, octupole, etc.) than the surface field of the Earth. This is at least in part due to the fact that the conducting core of Jupiter, in which the dynamo currents flow, is relatively closer to the surface of Jupiter than is the Earth's core to the.

Jupiter's structure and composition. Credit: Kelvinsong CC by S.A. 3.0. The atmosphere contains trace amounts of methane, water vapor, ammonia, and silicon-based compounds, as well as trace. The Giant Planets Jupiter and Saturn, the two largest planets, have densities indicating they are composed chiefly of hydrogen and helium (Table 10.2). In the outer parts of the planets, these elements occur as ices and gases and at greater depths as fluids. The cores of Jupiter and Saturn comprise chiefly metallic hydrogen As the largest planet orbiting the Sun, Jupiter has had a profound influence on the solar system. But its origin remains a profound mystery. To learn how Jupiter formed and how it has evolved, Juno is studying the gas giant's gravitational and magnetic fields, vast magnetosphere, intense aurora, and exploring the swirling clouds that form Jupiter's colorful, trademark atmosphere The Moon: Its heavily cratered, presumably ancient surface, slow rotation, and probably solid core (based on very limited seismic studies) predict that it should have no magnetic field. No magnetic field is observed, again in agreement with theory. Mars: Its in-between geology suggests it is probably too cool for a large molten core (2014.

Its interior thus must resemble a raisin pudding, with rock and ice well mixed, instead of exhibiting the core-mantle structure found within Io, Europa, and Ganymede. Nevertheless, Callisto has a weak magnetic field induced by Jupiter's field, which raises the possibility that a conducting layer of salty liquid water exists somewhere below. (by mass), and a few percent methane, ammonia, and water vapor, that blend gradually into a fluid interior. Seen through Earth-based telescopes, Uranus is a small, featureless, greenish-blue disk. The green-blue color arises because the atmosphere contains methane, a good absorber of longer-wavelength photons. b. mantle: a deep mantle must contain large amounts of water, methane The warm ice in the mounds may contain chemicals from the ocean beneath. Interior Structure By combining measurements of Europa's induced magnetic field, gravitational pull, and oblateness, scientists conclude that Europa's outermost 100 to 200 km are ice and water. Within this outer shell is a rocky mantle surrounding a metallic core

However, lack of recent geological activity and any significant magnetic field indicate that the core has cooled to the point where although still partially liquid, it no longer has a large enough heat flow to be convective, and cannot support a planet-wide magnetic field This large amount of energy is yet to escape completely and it is the source of excess energy of Jupiter that it releases. The core of Jupiter is probably more than 20000 K. The heat is also generated by the Kelvin-Helmholtz mechanism, the slow gravitational compression of the configuration. The fact that Jupiter is still collapsing indicates.

Best Astronomy Exam 3 Flashcards Quizle

Enceladus (/ ɛ n ˈ s ɛ l ə d ə s /; Greek: Εγκέλαδος) is the sixth-largest moon of Saturn.It is about 500 kilometers (310 mi) in diameter, about a tenth of that of Saturn's largest moon, Titan.Enceladus is mostly covered by fresh, clean ice, making it one of the most reflective bodies of the Solar System.Consequently, its surface temperature at noon only reaches −198 °C (−. How Jupiter protects us. Jupiter is big. Really big.Like a celestial clown car, Jupiter is so large that about 1,300 Earths could comfortably fit inside it. It's incredible girth is also an. • Strong magnetic field(20 000 times stronger than Earth's) • Has very large magnetosphere, and is surrounded by a sea of charged particles • Liquid metallic H inside Jupiter + rapid rotation cause the strong magnetic field • Ring system (rock and dust). t these rings were created by meteoroid impacts on small nearby moons

Of particular importance for Jupiter's magnetic field (see Section 11.4) is that this metallic hydrogen is an excellent conductor of electricity. Figure 11.10 Jupiter's internal structure, as deduced from Voyager measurements and theoretical modeling. The outer radius represents the top of the cloud layers, some 70,000 km from the planet's center Extraterrestrial liquid water (from the Latin words: extra [outside of, beyond] and terrestris [of or belonging to Earth]) is water in its liquid state that naturally occurs outside Earth.It is a subject of wide interest because it is recognized as one of the key prerequisites for life as we know it and thus surmised as essential for extraterrestrial life In order for a planet to have a magnetic field it must have a mechanism to keep the electrons in motion. All of the Jovians have significant magnetic fields. Among them, Jupiter has the strongest magnetic field. This field is so large that it extends beyond the orbit of Saturn and maintains very intense radiation belts within it 49,500. 17. 1.6. 16.1. Jupiter, the giant among giants, has enough mass to make 318 Earths. Its diameter is about 11 times that of Earth (and about one tenth that of the Sun). Jupiter's average density is 1.3 g/cm 3, much lower than that of any of the terrestrial planets. (Recall that water has a density of 1 g/cm 3 . The core is a highly conductive iron‐nickel alloy. Internal heat forces the liquid core to circulate with convection while Earth's rotation turns it about an axis. The rotation of this convecting, conducting liquid generates Earth's magnetic field in a process called the dynamo effect

Research highlights Cyclotron emission from terrestrial exoplanet magnetic fields may be remotely detectable at radio frequencies. Surface magnetic fields can be up to 2-5 times the Earth's field strength if the core is cooling rapidly. Iron in a rapidly cooling core will only nucleate if total planet mass is less than approximately two Earth-masses. Detection of terrestrial exo-magnetic. Planetary habitability is the measure of a planet's or a natural satellite's potential to develop and maintain environments hospitable to life. Life may be generated directly on a planet or satellite endogenously or be transferred to it from another body, through a hypothetical process known as panspermia. Environments do not need to contain life to be considered habitable nor are accepted.

Astronomy Exam 3 Flashcards Quizle

Chapter 14: Jovian Planets November 18, 2014 Jovian Planets • Jupiter -the largest planet -is over 1,000 times the size (volume) of Earth. • Saturn -best know for its beautiful rings -but it is not the only planet with rings. • Their locations in the Solar System has made these four planets very different from the terrestrial planets. • The Jovian worlds have atmospheres rich. The Jovian magnetic field has the opposite sense to Earth's field; the north magnetic pole is at the south pole of Jupiter. The magnetic field fluctuates rapidly in size on the sunward side of Jupiter because of pressure variations in the solar wind, an effect studied in further detail by the two Voyager spacecraft. Energetic protons were. Jupiter: Magnetic Field 6 The magnetic poles of Jupiter are shifted by about 10° from the rotational pole, similar to Earth. In addition to the strong magnetic field, Jupiter also exhibits a plasma torus. This plasma torus is produced by Io; volcanic activity on Io releases S, Cl, O, and Na in to the atmosphere, and some of this escapes an The darker core areas indicate a relatively high probability of receiving signals as a function of both the position of Io and the central meridian longitude of Jupiter (as viewed from Earth). Lighter surrounding areas indicate less probable or lower intensity signals. The yellow area indicates the domain of non-Io-A signals

to retain appreciable amounts of the lighter components of the primordial cloud, whereas the outer planets (Jupiter, Saturn, Uranus, and Neptune) accumulated large amounts of hydrogen and other light materials because of their much colder temperatures. Chapter 21 2. Retrograde motion occurs when Earth, which travels faster than Mars, passes Mars These facts have allowed NASA scientists and others to surmise that its core must be large and contain overwhelming amounts of iron. Planetary geologists estimate that the planet's molten core. Magnetic fields around planets behave in the same way as a bar magnet. But at high temperatures, metals lose their magnetic properties. So it's clear that Earth's hot iron core isn't what. Simply put, a magnetosphere is the region where a planet's magnetic field is dominant. Interplanetary space, on the other hand, is dominated by the Sun's magnetic field and the solar wind. A strong magnetic field can protect a planet from the solar wind and from coronal mass ejections by deflecting high-energy particles. Mercury, Earth, Jupiter, Saturn, Uranus, and Neptune each have an. This large nickel-iron core is responsible for our large magnetic field. This magnetic field produces the Van-Allen radiation shield, which protects the Earth from radiation bombardment. If this shield were not present, life would not be possible on the Earth. The only other rocky planet to have any magnetic field is Mercury—but its field.

PHYS 103 Chpt. 9-12 Flashcards Quizle

Astronomy Chapter 9 Flashcards Quizle

Based on historical measurements, Earth's magnetic field is losing half its energy every 1,400 years or so. Given this rate of loss, the field's energy would have been so great just a few tens of thousands of years ago that it would have melted the planet's crust. 4 Earth's magnetic field must be young Magnetic field A magnetic field is the invisible region of influence around a magnet in which other magnets, things made of metal, or things with an electric charge feel its magnetic force. Some objects in space, like the planets earth and Jupiter, as well as the sun, act like magnets and thus have their own magnetic fields

Their results indicate that Jupiter's core is smaller than ∼10 M ⊕, and that its global composition is pretty much unknown (between 10 and 42 M ⊕ of heavy elements in total). The models indicate that Jupiter is enriched compared to the solar value by a factor 1.5 to 8 times the solar value The magnetic field must be generated electromagnetically by large-scale motion of the material in Earth's interior, combined with rotation on its spin axis. These motions produce a magnetic dynamo. If Earth had a liquid metallic core, convection of the liquid could generate strong electric currents, which in turn would establish a magnetic field A gas giant is a large planet composed mostly of gases, such as hydrogen and helium, with a relatively small rocky core. The gas giants of our solar system are Jupiter, Saturn, Uranus and Neptune 9. Planets nearest Sun lose large amounts of lighter elements (H, He), leaving them with smaller sizes and masses, but greater densities than the outer planets. Inner planets are dominated by rock and metal. 10. Outer planets retain light elements such as H and He around inner cores of rock and metal. Outer planets have large sizes and masses

Jupiter - an overview ScienceDirect Topic

  1. Radiometric age dating of asteroid pieces that have. Radiometric age dating of asteroid pieces that have landed on Earth indicate a uniform age of about 4.6 billion years. The great majority of asteroids spin very slowly, if at all. All of these. Photographs of asteroids show normal cratering over most of their surface
  2. 2. Planetary magnetic fields require energy sources; otherwise they would decay on time scales much shorter than the age of the solar system. For example, in the absence of a dynamo, the decay time for the magnetic field generated in Earth's core is on the order of 10,000 years. The implication is that a planet's magnetic field must be.
  3. The Bringer of Jollity Jupiter is the fifth planet from the Sun and by far the largest.Jupiter is more than twice as massive as all the other planets combined (318 times Earth). orbit: 778,330,000 km (5.20 AU) from Sun diameter: 142,984 km (equatorial) mass: 1.900e27 kg Jupiter (a.k.a. Jove; Greek Zeus) was the King of the Gods, the ruler of Olympus and the patron of the Roman state

Magnetosphere - an overview ScienceDirect Topic

Still, it has an iron core that generates its own magnetic field, which dominates very close to the surface even over the enormous magnetic field of nearby parent planet Jupiter At the centre of Jupiter, there is probably a massive iron-silicate core surrounded by an ice mantle. The core temperature is estimated to be 30,000K. The deep, metallic hydrogen 'mantle' gives Jupiter a powerful magnetic field. It traps a large quantity of plasma (charged particles); high-energy plasma funnels into the radiation belts

The magnetic field and magnetosphere. Like the other giant planets, Uranus has a magnetic field that is generated by convection currents in an electrically conducting interior. The dipole field, which resembles the field of a small but intense bar magnet, has a strength of 0.23 gauss in its equatorial plane at a distance of one Uranian equatorial radius from the centre But Earth's magnetic field creates a protective shield that deflects these deadly particles. And you don't have to travel far to see the fate of a planet that lost its shield. Four billion years ago, Mars had a liquid iron core and a magnetic field just like Earth's. Mars built up a thick atmosphere and supported liquid water on its surface One long paper by A.G.W. Cameron and J.B.Pollack discusses the origin of Jupiter and its satellites. Many of the other papers discuss in detail various questions about Jupiter's atmosphere, ionosphere, magnetic field, and radiation belts. More than 200 pages are devoted to Jupiter's moons

Does Jupiter Have a Solid Core? - Universe Toda

  1. comparable amounts of ice and rock. Recent data, however, suggests a more complex core as shown here (bottom right). The surface layers of Ganymede and Callisto are shown as white to indicate that they may differ from the underlying ice/rock layers in a variety of ways including, for example, the percentage of rock they contain
  2. Experimental results suggest that if Earth initially grew by the accumulation of highly chemically reduced material, its core could contain enough uranium to drive the planet's magnetic field.
  3. utes
  4. Uranus/Neptune magnetic field: The magnetic fields for both Uranus and Neptune are unusual and are not well understood at this time. As the diagram below shows, the magnetic fields of the strongest three worlds, Jupiter, Saturn and the Earth, are all roughly aligned with the rotational axis of the planets
  5. A Magnetic Field Flip Could Occur Over a Short Period of Time. The 'north pole' — that is, the direction of magnetic north — was reversed a million years ago. This map shows how, starting about 789,000 years ago, the north pole wandered around Antarctica for several thousand years before flipping 786,000 years ago to the orientation we.

Metallic Hydrogen - an overview ScienceDirect Topic

  1. If it does not have a magnetic field, Kepler-438b likely experiences deadly levels of radiation. Gliese 581g appears to orbit just 0.13 astronomical unit (AU; 1 AU is the average Earth-Sun.
  2. It all points to an earth and magnetic field only about 6,000 years old.19. Rescuing Devices. Old-earth advocates maintain the earth is over 4.5 billion years old, so they believe the magnetic field must be self-sustaining. They propose a complex, theoretical process known as the dynamo model, but such a model contradicts some basic laws of.
  3. That means the total volume of lava piles up into one, very large volcano. The Magnetism of Mars Gives Clues to the Planet's Interior and More. A recent discovery by the Mars Global Surveyor spacecraft of large areas of magnetic materials on Mars indicates that the planet once had a magnetic field, much like Earth does today. Because magnetic.
  4. inhibit motions in the core, and there would be no magnetic field. On the other hand, if the mantle were solid, the core would be able to convect and generate a field. An attempt to measure Io's magnetism failed recently because the spacecraft went into its safe mode during a close approach to Io. Another attempt is planned in early 2001

Why Jupiter? - Mission Jun

Jupiter's magnetic field is 20,000 times stronger than Earth's and creates a magnetosphere so large it begins to deflect the solar wind 2-4 million miles before it reaches Jupiter Taking all these observations together suggests that Jupiter's core of 10-20 M ⊕ accreted within <0.5 Myr, while Jupiter reached ~50 M ⊕ after ~2 Myr, and its final size of ~318 M ⊕. Messenger will fly by Mercury twice more, on 6 October 2008 and 29 September 2009. Mercury's gravity slows Messenger down during each flyby, making it easier for the planet to eventually capture the spacecraft into orbit on 18 March 2011. The spacecraft is designed to last at least one year in orbit around Mercury A flare is caused when magnetic field lines stretch and twist over sunspots on the surface until they build up enough energy to snap open, forming a tongue-like shape. (Photo: ESA/NASA) No one suffered from the January 20th solar event thanks to the thick atmosphere and magnetic field that protect Earth and its inhabitants from solar radiation Milky Way Galaxy, large spiral system consisting of several hundred billion stars, one of which is the Sun.It takes its name from the Milky Way, the irregular luminous band of stars and gas clouds that stretches across the sky as seen from Earth.Although Earth lies well within the Milky Way Galaxy (sometimes simply called the Galaxy), astronomers do not have as complete an understanding of its.

The Internal Temperatures and Magnetic Fields of The Planet

A) Spacecraft can sample the gravitational field of a planet. B) Spacecraft can view backlit views of planetary rings. C) Spacecraft can measure local magnetic fields. D) Spacecraft can monitor changes in a planet's atmosphere over long times. E) Spacecraft can make highly detailed images of the planet and its moons. Answer: Mercury is the closest planet to the Sun and the smallest planet in the solar system. Its size is slightly larger (28%) than our moon craters and surface are very similar. Mercury travels around the Sun faster than any other planet because of its proximity. It is visible from Earth just before sunrise or just after sunset Sun with a well -behaved -fusion reactor at its core. Many of theseH violent events at the solar surface are driven by solar magnetic fields, deep-seated remnants of ancient origin [15] arising from a) the neutron star at the solar core, and/or b) the iron-rich, super-conducting [16] material that surrounds the central neutron star Saturn - Saturn - The atmosphere: Viewed from Earth, Saturn has an overall hazy yellow-brown appearance. The surface that is seen through telescopes and in spacecraft images is actually a complex of cloud layers decorated by many small-scale features, such as red, brown, and white spots, bands, eddies, and vortices, that vary over a fairly short time Neutron stars are fascinating because they are the densest objects known. Due to its small size and high density, a neutron star possesses a surface gravitational field about 300,000 times that of Earth. Neutron stars also have very intense magnetic fields - about 1,000,000,000,000 times stronger than Earth's

Ganymede is the largest moon in our solar system, and the only moon with its own magnetic field. Recent studies indicate a large underground saltwater ocean is present. Ganymede could in fact have several layers of ice and water sandwiched between its crust and core There's a (derivable) law from electromagnetism called Lenz's Law that say that any change in the magnetic field through a conductor results in a current, that creates a new magnetic field, that opposes that change. Usually the responding field is substantially smaller than the original field because energy is lost to resistance A) its magnetic field used to be weaker. B) it was rotating more rapidly. C) the Sun was dimmer, putting out less solar radiation. D) it was not as close to the Sun. E) its atmosphere was thicker 24. The biggest obstacle to life being present in the atmospheres of Jupiter and Saturn is the. A) absence of liquid water in their atmosphere However, Europa has no magnetosphere of its own, and lies within Jupiter's powerful magnetic field. As a result, its surface is exposed to significant amounts of radiation - 540 rem of. It will eventually become part of a large elliptical galaxy, after the Andromeda galaxy collides with it. d. Its stars will all become much hotter and bluer-looking. Caption: Blue lines represent magnetic field lines. 28. (T/F) In this artist's conception, we're probably looking at at the powerful magnetic field and high-speed jets of a. Size, Mass and Density: Earth's has a mean radius of 6,371 km (3,958.8 mi), and a mass of 5.97 × 1024 kg, whereas Jupiter has a mean radius of 69,911 ± 6 km (43441 mi) and a mass of 1.8986×.