Term
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Definition
Pluto and Triton
Too small to be planets but large enough to have satellites of their own. |
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Term
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Definition
Elliptical (does not travel in a circle, it is a oval)
Inclined (does not travel on the plane of the solar system, it is inclined.
Crosses the orbit of Neptune. |
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Term
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Definition
| Pluto is too small to hold onto an atmosphere but it has a very small one (0.0000014 ATM). It must be constantly making more atmosphere to replace the stuff that is lost. |
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Term
| How did scientists know to look for Pluto and the other objects in the Kuiper Belt? |
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Definition
1. The mass distributed through the solar system stops after Neptune. They realized there should be something else out there.
2. Co mets are made of ice so as they travel through the inner solar system they are desinitgrating. In order for there to still be co mets they must be coming from somewhere. |
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Term
| How did scientists know to look for Pluto and the other objects in the Kuiper Belt? |
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Definition
1. The mass distributed through the solar system stops after Neptune. They realized there should be something else out there.
2. Co mets are made of ice so as they travel through the inner solar system they are desinitgrating. In order for there to still be co mets they must be coming from somewhere. |
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Term
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Definition
Like the asteroid belt but this lies beyond Neptune.
It is beyond the snow line so the objects are made of ice.
All object have a inclined and elliptical orbit
Object are dark red and hard to see from earth |
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Term
| Why did these objects never accrete into a planet? |
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Definition
| They are so far from the sun that they move very slowly. They are also very speed out so they are accreting but the ACCRETION TIME is so long that it hasn't formed into a planet yet. |
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Term
| What is the distribution of material in the Kuiper Belt? |
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Definition
There are a lot of objects in 3:2 resonance with Neptune including Pluto.
It stays near the plane of our solar system |
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Term
| Why are there objects in 3:2 resonance with Neptune? |
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Definition
We see that even in the asteroid belt there are objects in 3:2 resonance with Jupiter.
3:2 resonance is the only stable resonance. Where objects orbits are not effected at all by what they are in resonance with. |
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Term
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Definition
| Icy objects from the Kuiper Belt and the Oort Cloud That get pulled into the outer solar system by Neptune and Jupiter |
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Term
| Where did Tritan come from? |
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Definition
| Triton was a kuiper Belt object before it got captured by Neptune |
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Term
| What are the two types of comets? |
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Definition
1. Short orbit comets
2. Long orbit Comets. |
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Term
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Definition
Orbit in less then 100 years.
From the Kuiper Belt
Stay close to the plane of the solar system.
Stay close to Jupiter. |
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Term
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Definition
Orbit is more then 100 years.
They come from all directions in the sky.
Their origin is the Oort cloud |
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Term
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Definition
Right at the outer limit of the suns gravitational pull.
Material that was shot our of the solar system during the brief moment that Saturn and Jupiter were in 2:1 resonance.
We have never seen it because it is too far away. |
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Term
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Definition
1. dust and material from the disintigrating com met.
2. Gasses that reflect the light from the sun. |
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Term
| What is the tail of a comet? |
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Definition
Gas and materrial that jets off of the icy commet as it moves through the inner solar system.
It is made of water, CO2, and Amonia. |
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Term
| Does a comet have a tail lurked the snow line? |
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Definition
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