What is the smallest known gas giant? and how small can a gas giant get before the gas goes away?

Question

by gas giant, i mean a gas giant like jupiter, saturn, uranus, neptune, but i want to know how small they can get before they turn into rocky planets and take on a gassy atmosphere like earth's

Paula · Accepted Answer

In a sense, Venus is a gas giant. But no. Because its dense atmosphere is not H & He.

We don't really know this - and it depends on how far the planet is from the star and how hot the star is.

The cut-off figure for "gas giants" is as low as 1 earth mass.
see this article -- https://en.wikipedia.org/wiki/Gas_giant#Gas_dwarfs

Ray;mond · Answer

I'll guess about Earth or Venus size is minimum, and rare. We could call Venus a gas planet, as it has about 90 times the atmosphere that Earth has. We don't know much about the atmosphere of planets beyond our solar system, and may never know much more.

Enough Trolls · Answer

There is no definitive cut off line. What criteria apply? Is it mass? Gas to solid ratio?

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What is the smallest known gas giant? and how small can a gas giant get before the gas goes away?

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