The Frost Line, 2.7Au from sun

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In summary, the frost line in the asteroid belt is significant as it marks the point where ice was able to condense during the formation of the solar system. This resulted in the formation of larger planets, such as gas giants, due to the retention of hydrogen and helium. Understanding the frost line is crucial in comprehending the chaotic birth of planets.
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Bemis
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What is the effect and what is the significance of the frost line that is presently located in the middle of the asteroid Belt? What Coincidence is there pertaining to the separation between Gas Giants and terrestrial planets. I know that it is the point where ice was able to freeze during the beginning of the formation of the solar system. Before this point, water was either in vaporized or aqueous form. How is understanding the frost line important to understand the formation of the solar system.
 
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The frost line is the innermost radius at which lots of ice can condense.

Lots of ice -> bigger planets -> hydrogen and helium won't escape -> even bigger planets -> gas giants.
 
  • #3
If memory serves me well, you may want to read "The Chaotic Birth of Planets", Scientific American, May 2008.
 

1. What is the significance of the Frost Line, 2.7Au from the sun?

The Frost Line, also known as the snow line or ice line, is the distance from the sun at which water and other volatile substances are able to condense into solid form. This boundary marks the outer limit of the inner solar system, where temperatures are cold enough to support the formation of icy bodies like comets and asteroids.

2. How was the Frost Line determined?

The Frost Line was determined through observations and studies of the formation of our solar system. As the early solar system cooled, the volatile substances that were present in the inner regions were able to condense into solid form at a certain distance from the sun. This distance was estimated to be around 2.7 astronomical units (AU) from the sun.

3. Why is the Frost Line important for understanding the history of our solar system?

The Frost Line provides valuable insight into the early stages of our solar system's formation. It helps us understand the distribution of volatile substances and how they were affected by the sun's heat and the distance from it. This information can also help us understand the formation and evolution of planets and other bodies in our solar system.

4. Can the Frost Line change over time?

Yes, the Frost Line can change over time. As the sun ages and its energy output changes, the Frost Line may move closer to or further away from the sun. This can also be influenced by other factors such as collisions between objects in the solar system or the migration of planets.

5. Is the Frost Line a fixed distance from the sun?

No, the Frost Line is not a fixed distance from the sun. It is estimated to be around 2.7 AU from the sun, but this distance can vary depending on the conditions and changes in the solar system. It is also important to note that the Frost Line is not a physical barrier, but rather a boundary where conditions are favorable for the formation of icy bodies.

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