Questions tagged [gas-giants]
Questions regarding massive planets composed of layers of gases, such as hydrogen and helium, surrounding a solid/liquid core.
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What would Uranus look like from light years away?
It has been suggested that at least some of the "super-puff" planets may actually be ordinary planets with rings. Saturn, for instance, may appear as a "super-puff" to an alien ...
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How can ultraviolet planetary images help us in research?
Recently I was browsing through Ultraviolet images clicked by Cassini, Galileo and Hubble Space Telescope on OPUS and though they all seemed quite attractive, I couldn't quite figure out what all ...
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Maximum and minimum masses and sizes of giant planets?
What are the minimum & maximum masses and diameters of giant planets?
Minimum end of the scale
Earth has mass of 1 Earth mass and a mean radius of 6,371.0 kilometers, and thus a mean diameter of ...
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Are there areas within Jupiter's magnetosphere without powerful radiation?
I know Jupiter has powerful radiation belts, but I'm wondering if there are places within the magnetosphere that are relatively calm. I'm asking about Jupiter (a gas giant we know) because I'm curious ...
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About the formation of ice giants and gas giants
I asked this previously in Worldbuilding stack exchange, and they recommended that I take it here.
How far out from a star (lets just say one identical to our sun, for simplicities sake) where can gas ...
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JWST Early Black Holes: Gas Collapsed To Metallic Hydrogen Core?
I was reading an article about early black holes found by JWST at Redshift 9. And saw that there was wonder at how large amounts of gas could collapse into a black hole as a theory.
So my question is ...
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On the Radiation Field of large Gas Giants
I am woring on creating a fictional star system, and I need to find an answer to a question to find an accurate way to depict this.
I am aware that Gas Giants create a dangerous field of radiation ...
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What is the long term fate of the gas giants?
If I'm not mistaken, it is believed that the reason for such turbulent weather on the 4 outer gas giant planets is that the internal pressure is so great that it is generating heat, which is causing ...
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Does rotation on their axis cause winds in gaseous planets?
As far as I know, as planets rotate around their axis, they can influence winds but not cause them (like the Coriolis effect)
However, does this apply only for rocky planets? Do rotation alone in ...
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Sub brown dwarf cores
I’ve heard that the cores of sub-brown dwarfs (sub brown dwarfs mass objects that form the same way as stars and brown stars instead of forming like planets do.) are different from that of gas giants.
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What would a gas giant, such as Uranus, look like if it were orbiting a sun like star at an Earthlike orbit?
This is a hypothetical. If a gas giant with the approximate mass and density of Uranus existed within the goldilocks range to support life around a star, what would be the conditions on the service. ...
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At what point above Jupiter is the gravity Earth-like?
Jupiter is a massive planet. We get it. However, we have also heard that, since it has such a huge radius, at different elevations it is possible to experience different levels of gravity. We hear ...
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Temperature of a gas giant 23 AU from Fomalhaut
If a gas giant, weighing about 30 Jupiter masses, orbited the A-type star Fomalhaut at 23 AU, what would its temperature be? Would it be warm enough to have ammonia clouds like Jupiter or Saturn, or ...
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Why is the core of a gas giant supported by electron degeneracy pressure instead of nuclear fusion?
After a Sun-sized protostar forms, its core will become denser over time due to radiation. The core eventually gets dense and hot enough for hydrogen fusion to take place. In the late phases of the ...
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Can small gas planets exist?
Most of the known gas planets (Jupiter, Saturn, etc.) are huge. They are even called "gas giants".
is it possible to exist a gas planet around the size of Earth? If yes, why; if no, why?
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