Transcript Uranus ppt

Uranus Unveiled!!
Kerri Shepheard
Roxy Cativiela
Small Moons of Uranus
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Cordelia
Ophelia
Bianca
Cressida
Desdemona
Juliet
Portia
Rosalind
Belinda
Puck
Icy Moons of Uranus
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Miranda
 Ariel
 Umbriel
 Titania
 Oberon
 Caliban
 Sycorax
Moons Found After 1999
Stephano
Prospero
S/2003 U1
Setebos
S/2001 U2
1986 U 10
S/2003 U3
S/2003 U2
Uranus’ Structure
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The Giant planets do not have
the same layered structure that
the earthlike planets do. Their
evolution was quite different
than that of the earthlike planets, and they have
much more gas and ice inside.
 Uranus's interior is primarily made of methane ice.
 Motions in the interior of Uranus help form the
magnetosphere of Uranus. Heat generated within
Uranus helps form the unusual winds of the
atmosphere.
Atmosphere
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The plain aquamarine face of Uranus
proves the fact that there are clouds
covering Uranus
 Because the face of Uranus is all alike
that shows that the planet's atmosphere is
mostly made up of one thing, methane.
 The planet appears to be blue-green
because the methane gas of the
atmosphere traps red light and does not
allow that color to escape
Atmosphere Cont.
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High in its atmosphere there is also
ethane, which can fuel automobiles on
Earth
 Like Jupiter and Saturn, the basic
weather of Uranus can be described as a
striped pattern of winds. This means that,
even though the pattern is hard to see,
Uranus is striped, just like Jupiter and
Saturn
Magnetosphere of
Uranus
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The magnetosphere of Uranus is medium sized, but
still much bigger than the Earth's. It holds all of
Uranus' moons
 It is believed to be made in the middle of the planet,
and with ice, rather than with iron at the core
 The magnetosphere of Uranus has a very strange
tilt. The extreme tilt, combined with the extreme tilt
of Uranus itself, makes for a completely strange
magnetosphere, one which has twisting structure!
Magnetosphere Cont.
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Mathematical theory
suggests that the rings of
Uranus sweep the
particles in the
magnetosphere into the
atmosphere
 The Aurora on Uranus is
difficult to detect, and so
are radio signals from
Uranus, which means that
the magnetosphere of
Uranus may be almost
empty
This is a drawing of the magnetosphere of Uranus.
Rings, Rings, Rings!
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Uranus has 1 prominent
ring and a lot of small
ones after it
New Hubble images show
that Uranus' rings have
changed shape since 1986,
when Voyager 2 first
visited the gas giant. Uranus' inner rings are much more
prominent than before
Uranus' outermost ring is blue, just like Saturn’s E-ring
Uranus's rings stand out strongly in the infrared because their
icy material is efficient at reflecting sunlight at this wavelength
Why it’s Tilted
Astronomers think Uranus was hit by a really
big 'planetessimal' soon after the solar
system was formed, but before its moons
were born. The thing that hit it put matter in
orbit around the new tilted Uranus so that
the moons could eventually form out of this
ejected material left over from the collision.
It seems that all of the planets have at one
time been hit by BIG OBJECTS nearly as
big as they are. For the Earth, this resulted
in the formation of the Moon
Discovered at Last!
Uranus was the first planet discovered
in modern times. It was found
accidentally by William Herschel
while he was searching the sky with
a telescope in 1781. It had actually
been seen many times before but
dismissed as a star
Just the Facts
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Diameter- 51,118 km
 Density- 1.29 g/cm3
 Mass- 8.686 x 1025 kg
 Volume- 6.995 x 1013 km3
 Atmosphere- Hydrogen,
Helium, Methane
 Winds- Up to 160 m/s
 Moons- 27
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Distance from Sun2,870,990,000km
Orbital Period- 84 Years,
3 Days, 15.66 Hrs.
Rotation- 17.25 Hours
Tilt- 97.86°
Magnetic Field- Extends
15 times planet radius
Burr! Its Cold!!
 Uranus’ mean
tempature is 58K
 It has been recorded as low as 49K
however!
 That is in Kelvin, which has 0 as no
motion. That’s what I call cold!!
Its Name’s History
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The name Uranus comes from a Greek God named
Ouranos, also spelled Uranus like the planet.
This is the oldest God ever worshiped
He was the embodiment of the sky or heavens, and
known as the god of the sky. He was the first son of
Gaia (the earth) and he also became her husband
His offspring included the Cyclopes and
Hecatonchires, who each had one hundred hands
and fifty heads
The story goes that he was afraid of his sons
strength. So he hid them inside Gaia (Earth).
Video
Interior
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Uranus has 3 basic sections just like Earth
 The first section is made of Hydrogen
 The mantel is made up of frozen water
 Uranus has possibly the largest amount of
water covering a surface in the solar system
 The core is made of rocky material
Comparing Uranus and Earth
Uranus
Earth
Position from the Sun
7
3
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Diameter
31,763 miles
7,926 miles
Moons
21
1
Rings
10
0
Distance from Sun
1,786,000,000 miles
93,000,000 miles
Your Weight
Multiply weight by 0.93 Multiply weight by 1
One Year
84 Earth years
1 Earth year
One Day
17 hours & 8 minutes
24 hours
Atmosphere
Hydrogen, Helium
Nitrogen, oxygen
Temperature
-360ºF
-128ºF to 136ºF
Credits
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http://astronomy.nmsu.edu/catwu/ASTR105
/images/UranusRings.jpg
 www.solarsystem.nasa.gov
 http://www.pantheon.org/articles/u/uranus.h
tml
 http://nssdc.gsfc.nasa.gov/planetary/planetar
yfaq.html#Uranus