B Gas planets with solid satellites

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Gas planets like Saturn form with solid nuclei that allow them to accumulate gases when positioned far enough from their star. The presence of solid rings and satellites around these gaseous planets is linked to their gravitational influence, which is insufficient for smaller bodies to retain volatiles. The discussion highlights the simultaneous formation of planets and their satellites, emphasizing the unique characteristics of gas giants. Understanding the solid components of gas planets provides insight into their structure and formation processes. This knowledge enhances comprehension of planetary systems in our universe.
Jordi H
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I assume that planets and their satellites are created more or less at the same time. Why gaseous planets like Saturn have solid rings and satellites?
 
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Small bodies have too little gravity to hold on to volatiles. Once you have a large enough solid nucleus, and far enough from the star, it can start to accumulate the gasses.
 
Thank you. I did not know that the gaseous planets have solid nucleus.
 

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