Pluto
By: Naomi Allen
What does “Pluto" mean?
• Pluto-Roman Mythology The god of the dead and the
ruler of the underworld.
• A dwarf planet that until 2006 was classified as the
ninth planet in our solar system, having a sidereal
period of revolution about the sun of 248.5 years, 4.4
billion kilometers (2.8 billion miles) distant at
perihelion and 7.4 billion kilometers (4.6 billion
miles) at aphelion, and a diameter less than half
that of Earth.
• 2. All eight planets and some moons were named
after a mythological god or goddess.
Pluto and it’s surroundings
When it is outside Neptune's Orbit, it
is 8 planets away from the Sun and
when it is inside Neptune's Orbit, it
is 7 planets away from the Sun.
Pluto has a very eccentric orbit
and spends 20 year chunks of time
closer to the Sun than Neptune.
it takes About 6 earth days for Pluto
to rotate in its own axis
The 411 on Pluto
• It takes About 6 earth days for Pluto to
rotate in its own axis
• The diameter of the planet Pluto is
2390 kilometers.
• The mass of the planet Pluto is 0.0125
* 1024 kilograms.
• Pluto is technically the smallest planet
• The force of gravity on the surface of
Pluto is 1/15 of what it is on the surface
of the Earth. This means that a person
who weighs 150 lb on Earth would
weigh 10 lb on Pluto.
• Pluto takes about 247.92 Earth years
to complete one orbit around the Sun
What are you made of?
• Pluto's composition is not very well known since
it is so far away from Earth. Astronomers believe
that it's mostly made of rock and frozen methane,
water, nitrogen and carbon dioxide. This is
probably covered by a thin atmosphere of
methane Gas.
• The mean temperature on Pluto is -225°C (373°F).
• The mean temperature on Earth is 15°C
(59°F).
• Pluto is a kind of icy planet
How to see it
• While Pluto's internal composition is unknown, Hubble
Space Telescope observations suggest that the planet's
density lies between 1.8 and 2.1 gm/cm3 which indicate
that the planet is probably a mixture of 50 to 70 percent
rock with the remainder being water and other ices much
like Neptune’s moon Triton.
• Pluto's composition is not very well known since it is so
far away from Earth. Astronomers believe that it's
mostly made of rock and frozen methane, water, nitrogen
and carbon dioxide. This is probably covered by a thin
atmosphere of methane gas.
Can You live here?
• Pluto has three known moons. The largest, Charon, is
proportionally larger, compared to its primary, than
any other satellite of a known planet or dwarf planet
in the solar system. The other two moons, Nix and
Hydra, are much smaller.
• Pluto has no known rings.
• not very well. There would be minimal sunlight so you
would be unable to grow anything, the surface
temperature varies between -235 and -210 degrees
Celsius, there is no liquid water, the atmosphere when it
is not frozen would kill you in seconds, and the gravity
is only 7% that of earth.
Got Moons?
• Pluto has 3 moons. They took a long time
to discover because they're so tiny. Nix is
only 46 km across, while Hydra is 61 km
across.
When and who
• Pluto was discovered by the
astronomer Clyde W. Tombaugh
at the Lowell Observatory in
Arizona on February 18, 1930
when he was comparing
photographic plates taken on
January 23rd and 29th.
A little something special
•PLUTO THE
DWARF
PLANET!
Credits
• This power point was edited and
created by the one and only Naomi
Allen and with have some help from
Microsoft word and Google images, I
have created a wonderful power point
all about PLUTO. Pluto is a very
special planet to me and deserves just
as much attention as any other real
planet, because even though us little
people or planets are small we can do
big things!