Shape of Hot Jupiters

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Shape of Hot Jupiters

Post by Sirius_Alpha on 15th July 2009, 7:50 am

Whenever I consider a hot Jupiter, I think of a spherical world. More spherical than that gas planets of our solar system due to a tidally slowed rotation period. Doing an image search on HD 209458 b, I found this interesting picture.


From here.

Could the planet be shaped like that? What about other bloated planets like TrES-4 b?

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Re: Shape of Hot Jupiters

Post by NuclearVacuum on 15th July 2009, 9:25 am

... That's scary. How am I going to get that shape in Celestia! confused

Nice find by the way.

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Re: Shape of Hot Jupiters

Post by Edasich on 15th July 2009, 10:47 am

NuclearVacuum wrote:... That's scary. How am I going to get that shape in Celestia! confused

Nice find by the way.

I don't know. Maybe toying with oblateness? Razz
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Re: Shape of Hot Jupiters

Post by Lazarus on 15th July 2009, 4:09 pm

Picture represents the expanded atmosphere.

Using this Lagrange point finder, I get the distances of L1 and L2 as being 4.4 and 4.6 planetary radii away from the planet respectively, so there shouldn't be particularly much distortion of the main bulk of the planet.

As for getting Roche lobe shapes in Celestia, check out my W UMa (contact) binaries add-on.

Plus - should be planetology?
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Re: Shape of Hot Jupiters

Post by Edasich on 19th July 2009, 9:50 am

Lazarus W-UMas model looks really nice. But as for me I prefer generate W-UMa stars within spectbins.stc.
I get non contact objects but it works good anyway Smile
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Re: Shape of Hot Jupiters

Post by Sirius_Alpha on 19th July 2009, 10:44 am

Well I personally think his W UMa addon is a perfect (and very much needed) addition to Celestia.

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Re: Shape of Hot Jupiters

Post by NuclearVacuum on 19th July 2009, 4:12 pm

NuclearVacuum wrote:... That's scary. How am I going to get that shape in Celestia! confused

I only said that as a joke, I had no idea that it would be the topic. Wow!

Anyway, I like the W UMa addon! Nice find.

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