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The frost line, also known as the snow line or ice line, refers to a particular distance in the solar nebula from the protosun where it is cold enough for hydrogen compounds such as water, ammonia, and methane to condense into solid ice grains.

It would have existed between the orbits or Mars and Jupiter.

The frost line therefore separates terrestrial planets from jovian planets.

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โˆ™ 2009-11-28 12:50:20
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Q: What is the astronomical ice line?
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