Transcript Pluto by Jennifer and Pascale - Our Lady of Consolation National

Pluto: A Dwarf Planet
Pluto
• Pluto is the smallest planet in the Solar
System.
• It was found to be a dwarf planet.
• Scientist say that Pluto is not a planet.
• The discovery of Pluto made headlines
across the globe, and its name was proposed
by Venetia Burney, an eleven-year-old
schoolgirl in Oxford, England
Pluto
In our solar system, nine planets circle around our
Sun. The Sun sits in the middle while the planets
travel in circular paths (called orbits) around it.
These nine planets travel in the same direction
(counter- clockwise looking down from the Sun's
north pole). The picture on the right shows the
different paths and positions of each
Pluto
• Pluto is a very cold planet .
• Pluto orbits beyond the orbit of Neptune
(usually). It is much smaller than any of the
official planets and now classified as a "dwarf
planet". Pluto is smaller than seven of the
solar system's moons (the Moon, Io, Europa,
Ganymede, Callisto, Titan and Triton).
Pluto
Pluto is tilted 122.5 degrees on its axis, which basically means that it is
rotating on its head! . Pluto has an extreme elliptical orbit. Because of
the shape of Pluto's orbit, it actually slips inside of Neptune's orbit
once every 248 Earth years for a period of twenty years. Pluto has
three natural satellites. One of these moons, Charon, is half the size of
Pluto and is located close to Pluto. Two additional moons, called Nix
and Hydra, were discovered in 2005. They are small (between 60 and
200 km wide) and located much farther away from Pluto that Charon is
located
Pluto
• After its discovery in 1930, Pluto was classified
as the ninth solar system planet. However, as
scientists learned more about our solar
system, it was realized that Pluto had little in
common with the other eight planets. Pluto
was re-classified as a dwarf planet in August
2006.
Pluto
• The astronomers have demoted Pluto so there
are now only eight planets; Pluto is no longer
officially a planet. Now they're calling it a
"dwarf planet". Well, it's certainly a dwarf. But
planet or not, it's still out there and we can
still try to find out what it's made of and how
it got there
Pluto
• In Roman mythology, Pluto is the god of the
underworld.
• In Greek mythology, he is known
• as Hades, ruler of the underworld.
• The planet received this name perhaps
because it's so far from the
• Sun that it is in perpetual darkness.
Pluto
• After the discovery of Pluto, it was quickly
determined that Pluto was too small
Read more about Pluto l Pluto facts, pictures
and information. by nineplanets.org
PLUTO
Pluto means:
Pluto
Pluto was thought to be the god to whom all men must eventually go. Romans
believed him to be the god of the underworld. His name in Greece was Hades.
How much would you weigh on Pluto?
Because Pluto is so small you would be very light if you visited. If you weigh 70
pounds on Earth, you would only weigh 4 pounds on Pluto
PLUTO
• Pluto has three moons. The largest is named
Charon. Charon is only slightly smaller than its
parent Pluto. For this reason Pluto and charon
are often called a double system. The Earth
and its moon Luna are sometimes considered
double planets.
PLUTO
• Pluto is so far away, that no satellites have
ever been sent there. This means that we
have no good pictures of it. All we can do is
guess what it must look like. Pluto is smaller
than 7 of the moons in the Solar
System. Because it is so small many scientists
don't consider it a planet at all.
PLUTO
• Fortunately, Pluto has a satellite, Charon. By good
fortune, Charon was discovered (in 1978) just before
its orbital plane moved edge-on toward the inner
solar system. It was therefore possible to observe
many transits of Pluto over Charon and vice versa. By
carefully calculating which portions of which body
would be covered at what times, and watching
brightness curves, astronomers were able to
construct a rough map of light and dark areas on
both bodies .
PLUTO
• Worried, Jupiter sent Mercury to order Pluto to free Proserpina. Pluto
would have obeyed, but by then, she had eaten six pomegranate seeds,
whether of her own accord or through Pluto's trickery. Having tasted the
food of the underworld, she could not leave, but when Jupiter ordered her
return, Pluto struck a deal with him. He said that since she had stolen his
six pomegranate seeds, she must stay with him six months of the year, but
could remain above ground the rest of the time. For this reason, in spring
when Ceres received her daughter back, the crops blossomed and flowers
colored in a beautiful welcome to her daughter, and in summer they
flourished. In the autumn, Ceres changed the leaves to shades of brown
and orange (her favorite colors) as a gift to Proserpina before she had to
return to the underworld.[citation needed] During the time that
Proserpina resided with Pluto, the world went through winter, a
time when the earth was barren
PLUTO
• Worried, Jupiter sent Mercury to order Pluto to free Proserpina. Pluto
would have obeyed, but by then, she had eaten six pomegranate seeds,
whether of her own accord or through Pluto's trickery. Having tasted the
food of the underworld, she could not leave, but when Jupiter ordered her
return, Pluto struck a deal with him. He said that since she had stolen his
six pomegranate seeds, she must stay with him six months of the year, but
could remain above ground the rest of the time. For this reason, in spring
when Ceres received her daughter back, the crops blossomed and flowers
colored in a beautiful welcome to her daughter, and in summer they
flourished. In the autumn, Ceres changed the leaves to shades of brown
and orange (her favorite colors) as a gift to Proserpina before she had to
return to the underworld.[citation needed] During the time that
Proserpina resided with Pluto, the world went through winter, a time
when the earth was barren
PLUTO
• Pluto was discovered in 1930 by a fortunate
accident. Calculations which later turned out
to be in error had predicted a planet beyond
Neptune, based on the motions of Uranus and
Neptune. Not knowing of the error, Clyde W.
Tombaugh at Lowell Observatory in Arizona
did a very careful sky survey which turned up
Pluto anyway
Read more about Pluto l Pluto facts, pictures
and information. by nineplanets.org
PLUTO
• I THINK PLUTO IS A VERY INTERESTING PLANET
HOPE YOU ENJOYED OUR PROJECT