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GoldenPhoenix

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jupiter.png

The planet Jupiter is the fifth planet out from the You do not have permission to view the full content of this post. Log in or register now., and is two and a half times more massive than all the other planets in the You do not have permission to view the full content of this post. Log in or register now. combined. It is made primarily of gases and is therefore known as a “You do not have permission to view the full content of this post. Log in or register now.”.

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Jupiter Planet Profile
Equatorial Diameter: 142,984 km
Polar Diameter: 133,709 km
Mass: 1.90 × 10^27 kg (318 Earths)
Moons: 67 (You do not have permission to view the full content of this post. Log in or register now., You do not have permission to view the full content of this post. Log in or register now., You do not have permission to view the full content of this post. Log in or register now. & You do not have permission to view the full content of this post. Log in or register now.)
Rings: 4
Orbit Distance: 778,340,821 km (5.20 AU)
Orbit Period: 4,333 days (11.9 years)
Effective Temperature: -148 °C
First Record: 7th or 8th century BC
Recorded By: Babylonian astronomers
Jupiter Diagrams
jupiter-size-1.png

Jupiter size compared to Earth

jupiter-orbit.png
Jupiter distance from the Sun and orbital eccentricity

Facts About Jupiter
  • Jupiter is the fourth brightest object in the solar system.
    Only the Sun, You do not have permission to view the full content of this post. Log in or register now. and You do not have permission to view the full content of this post. Log in or register now. are brighter. It is one of five planets visible to the ***** eye from Earth.
  • The ancient Babylonians were the first to record their sightings of Jupiter.
    This was around the 7th or 8th century BC. Jupiter is named after the king of the Roman gods. To the Greeks, it represented Zeus, the god of thunder. The Mesopotamians saw Jupiter as the god Marduk and patron of the city of Babylon. Germanic tribes saw this planet as Donar, or Thor.
  • Jupiter has the shortest day of all the planets.
    It turns on its axis once every 9 hours and 55 minutes. The rapid rotation flattens the planet slightly, giving it an oblate shape.
  • Jupiter orbits the Sun once every 11.8 Earth years.
    From our point of view on You do not have permission to view the full content of this post. Log in or register now., it appears to move slowly in the sky, taking months to move from one constellation to another.
  • Jupiter has unique cloud features.
    The upper atmosphere of Jupiter is divided into cloud belts and zones. They are made primarily of ammonia crystals, sulfur, and mixtures of the two compounds.
  • The Great Red Spot is a huge storm on Jupiter.
    It has raged for at least 350 years. It is so large that three Earths could fit inside it.
  • Jupiter’s interior is made of rock, metal, and hydrogen compounds.
    Below Jupiter’s massive atmosphere (which is made primarily of hydrogen), there are layers of compressed hydrogen gas, liquid metallic hydrogen, and a core of ice, rock, and metals.
  • Jupiter’s moon Ganymede is the largest moon in the solar system.
    Jupiter’s moons are sometimes called the Jovian satellites, the largest of these are Ganymeade, Callisto Io and Europa. Ganymeade measures 5,268 km across, making it larger than the planet You do not have permission to view the full content of this post. Log in or register now..
  • Jupiter has a thin ring system.
    Its rings are composed mainly of dust particles ejected from some of Jupiter’s smaller worlds during impacts from incoming comets and asteroids. The You do not have permission to view the full content of this post. Log in or register now. begins some 92,000 kilometres above Jupiter’s cloud tops and stretches out to more than 225,000 km from the planet. They are between 2,000 to 12,500 kilometres thick.
  • Eight spacecraft have visited Jupiter.
    Pioneer 10 and 11, Voyager 1 and 2, Galileo, Cassini, Ulysses, and New Horizons missions. The Juno mission is its way to Jupiter and will arrive in July 2016. Other future missions may focus on the Jovian moons Europa, Ganymede, and Callisto, and their subsurface oceans.
Jupiter’s Great Red Spot
Situated 22° south of Jupiter’s equator, the Great Red Spot is a storm that has been raging for at least 186 years. In fact, upper estimates suggest that this red and turbulent storm could have been in existence for over three and a half centuries. A giant red spot was seen on Jupiter in the seventeenth century, when telescopes first started to be used. However, it is unknown whether this is the same red spot that we see today, or whether Jupiter has had many such storms that have come and gone as the centuries pass.

The red spot circulates anticlockwise and takes six (earth) days to rotate completely. Another mystery surrounding the red spot is what makes it red: scientists have come up with several theories (for instance, the presence of red organic compounds) but as yet nobody knows for certain. That will be a question for future astronomy!

Jupiter’s Atmosphere
Jupiter’s atmosphere is special because it is the solar system’s largest planetary atmosphere. It is made up of hydrogen and helium, in roughly the same proportions as are found in the sun. However, it also contains much smaller amounts of other space gases, such as ammonia, methane and water. 90% of the atmosphere of Jupiter – a huge proportion – is made of hydrogen. It would be impossible for humans to breathe in this atmosphere. So, if you are thinking of travelling to space to do some hands on astronomy research, you would have to wear a breathing suit when visiting this planet.
 

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