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Planet Research Project
Uranus
By Yu Xin
Symbol of Uranus
The name of Uranus
• Uranus is named after the ancient Greek deity
of the sky Uranus, the father of Cronus (Saturn)
and grandfather of Zeus (Jupiter), which in
Latin became "Ūranus". It is the only planet
whose name is derived from a figure from
Greek mythology rather than Roman
mythology.
Uranus’ s Discovery
• Discovered by William Herschel in 3/13/1781
• Observed many times before, but it was
generally mistaken for a star.
• On March 17, he noted, "I looked for the
Comet or Nebulous Star and found that it is a
Comet, for it has changed its place". When he
presented his discovery to the Royal Society,
he continued to assert that he had found a
comet, but also implicitly compared it to a
planet.
Uranus’ s Measurements
•
•
•
•
Mass: 8.68×10²⁵ kg
Volume: 6.83344×10¹³ km³
Density: 1.27g/cm³
Surface Gravity: 0.886g or 8.87m/s²
Uranus’ s Distance
• 7th planet in Solar System
• Distance from sun:
– Perihelion(Closest): 2,734,998,229 km
– Aphelion(Farthest): 3,006,318,143 km
• Distance from earth
Uranus’ s Orbit and Rotation
• Orbit period: 30,799.095 days (84.32years)
• Sidereal rotation period: 17.23992 hours (7.18
earth days)
Uranus’ s Atmosphere
• Thick atmosphere
• Hydrogen(H₂), Helium(He), Methane(CH₄)
Uranus’ s temperature
• 57K (-216°C -357°F)
• Uranus has the coldest atmosphere in Solar
system.
Composition/Appearance
• Gas Giant
Uranus ’s Rings
• Ring Name: Zeta (1986 U2R)
Distance*: 39,600 km
Width: 3,500 (plus 5,000 km
extension inwards) km
Thickness: 0.1 km
Albedo: 0.03
• Ring Name: 6
Distance*: 41,840 km
Width: 1 km - 3 km
Thickness: 0.1 km
Albedo: 0.03
• Ring Name: 5
Distance*: 42,230 km
Width: 2 km - 3 km
Thickness: 0.1 km
Mass: 0.1 kg
Albedo: 0.03
• Ring Name: Eta
Distance*: 47,190 km
Width: 0 km - 2 km
Thickness: 0.1 km
Albedo: 0.03
• Ring Name: Gamma
Distance*: 47,630 km
Width: 1 km - 4 km
Thickness: 0.1 km
Albedo: 0.03
• Ring Name: Delta
Distance*: 48,290 km
Width: 3 km - 9 km
Thickness: 0.1 km
Albedo: 0.03
Uranus ’s Rings
• Ring Name: 4
Distance*: 42,580 km
Width: 2 km - 3 km
Thickness: .1 km
Mass: .1 kg
Albedo: 0.03
• Ring Name: Lambda (1986
U1R)
Distance*: 50,024 km
Width: 2 km - 3 km
Thickness: 0.1 km
Albedo: 0.03
• Ring Name: Alpha
Distance*: 44,720 km
Width: 7 km - 12 km
Thickness: 0.1 km
Albedo: 0.03
• Ring Name: Epsilon
Distance*: 51,140 km
Width: 20 km - 100 km
Thickness: < 15 km
Albedo: 0.03
• Ring Name: Beta
Distance*: 45,670 km
Width: 7 km - 12 km
Thickness: 0.1 km
Albedo: 0.03
• Ring Name: Nu (R/2003 U 2)
Distance*: 67,300 km
Width: 3,800 km
• Ring Name: Mu (R/2003 U 1)
Distance*: 97,700 km
Width: 17,000 km
Uranus ’s Rings
Uranus ’s Ring
• Uranus’ s Ring are
mainly made of dust
and ice.
Uranus ’s moon
• Scientist has discovered that Uranus has 27
moons now , but maybe there are more we
didn’t discover.
Does Uranus have water in any form?
• We are not sure that is there any water on
Uranus.
• Everything we know about Uranus comes
from looking through a telescope. Only one
spacecraft, Voyager 2, has ever made a close
flyby of the planet. Astronomers suspect there
is lots of water on Uranus. Since they’ve never
actually sampled the surface of the planet,
how could they know?
Does Uranus have water in any form?
• It all comes down to density. The density of
Uranus is the second least in the Solar System,
after Saturn. In fact, it has a density that’s only
a little higher than water. Since water is very
common in the outer Solar System,
astronomers suspect that the whole planet is
made of mostly water. But it’s not like any
water you’ve ever seen.
Does Uranus have water in any form?
• The temperature at the cloud tops of Uranus
is 57 K (-357 F), and that temperature
increases as you go down at a very predictable
rate. It’s believed that the temperature at the
center of Uranus is about 5,000 K. Liquid
water can’t survive those kinds of
temperatures without boiling away, unless you
hold it under huge pressure. The water should
be a vapor, but the heat and pressure turns it
into a superheated liquid.
Uranus ‘s weather
• There are strong winds, and sometimes cirrus
clouds made up of methane ice crystals are
seen in the atmosphere.
What would happen if a human
traveled to Uranus?
• If a person traveled to Uranus, it’s really hard
for him to live.
• First, the temperature is extremely cold it has
more than 300°F different between earth!
• And there are no solid surface on Uranus, that
hard for landing.
• Also, there are no oxygen on Uranus ‘s
atmosphere so that human cannot breath.
• So, human cannot or extremely hard to live on
Uranus.
The special things about Uranus
• Uranus has the vertical angle between its orbit
and rotation.
Citation
• http://en.wikipedia.org/wiki/Uranus
• http://pds.jpl.nasa.gov/planets/welcome.htm
• http://www.universetoday.com/19309/wateron-uranus/
• http://www.scholastic.com/teachers/article/u
ranus