Uranus

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Uranus

• By Abbey Cahill

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How did Uranus get its name?

• At first Uranus was named "Georgium Sidus",
  after George III. Other people called the planet
  Herschel, in honor of the man who discovered it.
  One astronomer suggested the name Uranus, an
  ancient Greek god who was the father of Saturn,
  so that the new planet would have a name from
  mythology like the rest of the planets. The name
  Uranus was finally agreed on by everybody in the
  mid 1800's.

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The Size of Uranus

• Uranus is about four times the size of Earth but
  much smaller than Saturn and Jupiter. Uranus is
  51800 kilometers in diameter. Its mass is about
  fourteen times the mass of earth which is 5.98 x
  1024 kg.
• Uranus is much bigger than Earth but
• appears extremely small when compared to
  Jupiter, which is over 142800 kilometers. in
  diameter!

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Distance from the sun

• Uranus has an average of a 2.87 billion kilometer
  distance from the sun.
• It is the seventh planet from the Sun and has its
  spin axis almost in the plane of its orbit about
  the Sun. This produces unusual seasons and also
  causes unique magnetic and electric field
  structures.
• -http//www.windows.ucar.edu/tour/link/uranus/ura
  nus.html

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Time it takes for Uranuss rotation and
revolution.

• A day on Uranus is 17.9 earth hours. This period
  of time is also defined as how long in takes for
  Uranus to rotate once on its access.
• Uranuss year is 84 earth years long! Wow! It
  takes 84 earth years to orbit one full circle
  around the sun.

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What is Uranuss atmosphere made of?

• Uranuss atmosphere is about 83 hydrogen, 15
  helium, and 2 methane. (Methane gives Uranus its
  unusual color.)

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What is Uranus made of?
Uranus is composed of mostly rock and various
ices. With about 15 hydrogen and little helium.
Uranuss layers appear to blend together. its
atmosphere is about 83 hydrogen, 15 helium, and
2 methane. (Methane gives Uranus its unusual
color.)

• ,

The layers of Uranus.
Uranus from the outside
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Physical Features

• Uranus looks like a green-blue light from earth.
  Methane causes Uranus to have this color.
• Uranus also has fifteen orbiting moons, all
  named after story characters from authors like
  Shakespeare.
• All of Uranus's inner moons appear to be
  roughly half water ice and half rock. The
  composition of the moons outside the orbit of
  Oberon remains unknown, but they are likely
  captured asteroids.
• -http//sse.jpl.nasa.gov/planets/profile.cfm?Obj
  ectUranusDisplayMoons

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Uranuss Discovery

• Uranus was accidentally discovered by William
  Herschel in 1781.
• Herschel was a music teacher who named the
  planet its first name,

Georgium Sidus
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Latest info gained from space probe

• The latest information gained on Uranus was found
  by the Voyager 2, the only space probe ever to
  visit Uranus. The voyager 2 collected the
  information that a day on Uranus is !7 hours and
  fourteen minutes long. The closest approach to
  Uranus occurred on January 24, 1986. Voyager 2
  discovered 10 previously unknown moons studied
  the planet's unique atmosphere, caused by its
  axial tilt of 97.77

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Uranus and its year and gravity.
On Uranus, one year is equivalent to 84.01 years
on earth. So on earth, if someone is eighty-four
years old, they would only be one on
Uranus. Uranus has a stronger force of gravity.
If someone on earth ways 65 pounds, they would
weigh 71 pounds on Uranus.
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Fun Facts about Uranus!
Uranus is the size of four earths!
It spins on a horizontal axis!
Uranus rotates on its side, so half the time one
pole is toward the sun and then the other is,
making each of the four seasons last about 20
years!
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Uranus

• Sources
• http//sse.jpl.nasa.gov/planets/profile.cfm?Object
  UranusDisplayMoons
• http//www.nineplanets.org/uranus.html
• http//www.windows.ucar.edu/tour/link/uranus/uran
  us.html
• http//en.wikipedia.org/wiki/William_Herschel
• http//www.enchantedlearning.com/subjects/astronom
  y/planets/uranus/
• http//library.thinkquest.org/J001665/uranus.html