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Reply #40: I think you're right. [View All]

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sofa king Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Dec-06-11 06:59 AM
Response to Reply #14
40. I think you're right.
Edited on Tue Dec-06-11 07:04 AM by sofa king
2.4 earth diameters is tiny by gas giant standards--probably way too small to hold itself together. Interestingly enough, they don't get much larger than Jupiter, either. Once they get more massive than that, their diameter grows only slightly as gravity holds it ever more tightly together.

On the other hand, it's friggin' huge for a rocky planet. I'm sure it won't be long before someone computes the surface gravity of an earth-like planet of that size, and I'm sure it will be many times that of Earth, which has the highest surface gravity of any object we know of in this solar system (gas giants don't count because there's nowhere to stand!). Trying to stand on the surface would be like trying to stand up during a Space Shuttle launch.

Edit: for comparison, Neptune is the smallest gas giant we know of; it's 30,000 miles wide, or 3.7 EDs. Which suggests that if the measurement holds up, this planet is an "in-betweener," which makes it all the more interesting.
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