Eris Jonathan Ryan Cooper Corrected

ERIS A DWARF PLANET By Jonathan Ryan Cooper

What is a Dwarf Planet?
A dwarf planet is a celestial body which meets the following four criteria:
It must orbit the Sun
It must have sufficient mass that its gravity causes it to be round or almost round in shape
It must not be another object's satellite
It must not have cleared the neighborhood around its orbit

The Dwarf Planets
PLUTO
CHARON
CERES
ERIS

PLUTO USED TO BE A PLANET…

Why is Pluto NOT a planet?
In August 2006, the IAU (International Astronomical Union) voted on a definition of planet:
Must be spherical from its own gravity
Must be in orbit around the sun (not around another planet)
3. Must have cleared its orbital path of debris
Pluto met the first 2 criteria, but did not meet the Third. Pluto's orbit takes it into the Kuiper Belt, which has thousands of small objects (debris). If Pluto were discovered today, no one would even consider calling it a planet because it's clearly a Kuiper-belt object.

Charon – Double Dwarf Planet
Pluto has 3 moons.
Two of them are tiny.
They are called Nix and Hydra.
The other moon is called Charon.
It is much larger than the others.
Charon and Pluto circle around each other locked by gravity.
Some Scientists call
Pluto and Charon
“ Double Dwarf Planets”.

Ceres
Ceres, is the smallest dwarf planet in the Solar System. It is the only one located in the main asteroid belt.
Ceres is only the size of TEXAS!

Eris the Largest Dwarf Planet
Eris is a dwarf planet which lies at the edge of our solar system.
Eris has one moon name Dysnomia.
◄ This is Eris ◄ This is Dysnomia, Eris’ moon

Facts About Eris
Eris is the most recently discovered Dwarf Planet
Eris is the most distant object discovered so far in our solar system
At the farthest point of its orbit, Eris is almost 10 billion miles away from the sun
It takes eris 557 years to complete its orbit around the sun
Photograph of eris

More Facts About Eris
Eris was first detected in October 2003
Eris is a little larger than pluto
Eris is the largest of the dwarf planets
Eris has one moon, named Dysnomia
Eris’ nickname was Xena
The temperature on Eris is -230 C

Eris’ Orbit
The picture below shows the orbit of Pluto and Eris.

Review of Eris
What are the 4 Dwarf Planets?
They are Pluto, Charon, Ceres and Eris.
2. What is the biggest dwarf planet?
The biggest dwarf planet is Eris.
3. How far is Eris at the farthest point of its orbit?
Eris is ten billion miles from our sun.
4. How long is Eris orbit?
Eris orbit is 557 earth years.
5. What is the name of Eris’ moon?
Eris’ moon is named Dysnomia.

Eris Jonathan Ryan Cooper Corrected

by TheCooperFamily on Mar 08, 2010

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Eris Jonathan Ryan Cooper Corrected — Presentation Transcript