JupiterJupiter

JupiterJupiter is the biggest planet of the Solar System is the biggest planet of the Solar System and the fifth from the Sun. Its mass is two and a and the fifth from the Sun. Its mass is two and a

half times the mass of all the other planets half times the mass of all the other planets combined. Its volume is 1400 times the volume of combined. Its volume is 1400 times the volume of the Earth. It has the highest rotational velocity so the Earth. It has the highest rotational velocity so

it has the shortest rotational periode.it has the shortest rotational periode.It's a gas giant fromed by Hidrogen and Helium.It's a gas giant fromed by Hidrogen and Helium.

It was discovered by astronomers of ancient It was discovered by astronomers of ancient times who named the planet after the Roman God times who named the planet after the Roman God

Jupiter.Jupiter.

Jupiter's structureJupiter's structure

Jupiter's atmosphereJupiter's atmosphereThe atmosphere of Jupiter does not present a clear border with the liquid interior of the planet, the transition is taking place in a gradual way.

The atmosphere of Jupiter is divided in dark belts called Bands and clear regions called Zones, all of them aligned in the direction of the parallel ones. The bands and zones delimit a system of wind currents alternantes in direction with the latitude and in general of great intensity.

The Great Red SpotThe Great Red Spot

It is a persistent anticyclonic storm that is larger than the Earth.

The oval object rotates counterclockwise, with a period of about six days. It is large enough to contain two or three planets of Earth's diameter.

Storms such as this are common within the turbulent atmospheres of gas giants. Jupiter also has white ovals and brown ovals, which are lesser unnamed storms. White ovals tend to consist of relatively cool clouds within the upper atmosphere. Brown ovals are warmer and located within the "normal cloud layer". Such storms can last as little as a few hours or stretch on for centuries.

Latest evidence by the Hubble Space Telescope shows there are three "red spots" adjacent to the Great Red Spot.

Magnetosphere

Jupiter has an extencive magnetosphere formed by a magnetic fied of great intensity. It is the biggest structure in the Solar System.The magnetosphere is caused in the deep interior of Jupiter where the Hydrogen behaves as metal due to the highest pressure.

The metals are, certainly, excellent drivers of electrons, and the rotation of the planet produces currents, wich produce an extensive magnetic field.

SatellitesThe principal satellites of Jupiter were discoverd by Galileo Galilei it's why they are called Galilean Satellites.

● - IO is a volcanic satellite wich is in constant renovation.

● - EUROPE is a frozen satellite in which the astronomous expect the presence of liquid oceans of water and even the presence of life.

● - GANIMEDES is the biggest satellite of the whole solar system, it's composed by a core of iron covered by a rocky mantel of ice.

● - CALISTO is charecterized for beeing the satellite that presents the major quantity of chraters produced by impacts in the solar system .

Satellites● There are other satellites called minors, they can be divided in two

groups:

● - Group of Amaltea: they are four small satellites which orbite arround Jupiter in internal orbites with the Galilean Satellites. This group is composed by: Metis, Andrastea, Amaltea and Tebe.

● - Irregular Satellites: they are a numerous group of satellites in very distant orbits of Jupiter. They are so far away from it that the gravity of the Sun distorts their orbits. They are generally small satellites

This are the Amaltea's Satellites.This are the Amaltea's Satellites.

Rings systemJupiter possesses a tenuous system of rings that were discoverd by a sounding line called Voyager 1. The principal ring couldn't be observed without the sounding line due to its limitated optical thikness.

The principal ring is composed by material of the satellites Andrastea and Metis. This material is getting closer and closer to Jupiter because of its gravity, but this it is replaced by other impacts. A similiar proces happens with the exterior ring with Amaltea and Tebas.

Jupiter's formationThere are two types of theories of the formation of the planet:

-Formation from a core of ices of a mass concerning 10 times the terrestrial mass capable of attracting and accumulating the gas of the protosolar nebulae

-Early formation due to gravitational direct collapse since it would happen in case of a star.

In both cases the models have difficulties to make clear the size and total mass of the planet, his orbital distance of 5 ua, seems to indicate that Jupiter did not move from the region of formation, and the chemical composition of his atmosphere, especially of rare gases, enriched with regard to the Sun.

Impact of the comet SL9In July, 1994 the comet Shoemaker-Levy 9 struck against the atmosphere of Jupiter.

The impacts showed the formation of impressive balls of fire in the minutes later to every impact of whose analysis it was possible to deduce the mass of each one of the fragments of the comet. The remains left in the atmosphere were observed as black clouds in expansion for weeks propagating as shock waves. His properties allowed to analyze so much properties of the comet as of the Jovian's atmosphere and his deep interior for analogous methods to those of the terrestrial seismology.

Recent impactsOn July 2009 Anthony Wesley discoverd a black spot with a size similar to the diameter of the Moon. It was possibily caused by an asteroidal impact with the planet.

It provoked an increase of the temperature of the high liers of its asmosphere. Where it impact we can found a big cloud of dark particles of powder that formed the spot.

Recent impactsOn June 2010, Anthony Wesley and Christopher Go observed an intense flash of light ina very loacted region that correspond with the impact of an asteroidal body. The flash, wich lasted a few seconds, took place in equatorial latitudes and for the present time it does not seem to left any remnant of obsarvable material in the atmosphere.

Spacial explorationIt was overflied in 1973 by the sounding line called Pioneer 10, It was overflied in 1973 by the sounding line called Pioneer 10, Pioneer 11, followed him one year later. There it took the first Pioneer 11, followed him one year later. There it took the first nearby photos of Jupiter and of the Galilean Satellites, its nearby photos of Jupiter and of the Galilean Satellites, its atmosphere was studied, the magnetic field was detected and its atmosphere was studied, the magnetic field was detected and its belts of radiation were studied.belts of radiation were studied.

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