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Odd Jupiter feature

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#1 rg55

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Posted 16 February 2013 - 09:19 PM

I've seen this feature before, but it always stands out as quite spherical, different from the ovals you sometime see nearer the poles. Does anyone have a larger, clearer shot of this handy?

Thanks!

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#2 yock1960

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Posted 16 February 2013 - 09:57 PM

Is it one of the moons? Io transited tonight, the shadow was not on Jupiter until about 7:30ish EST.

Steve

#3 rg55

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Posted 16 February 2013 - 10:37 PM

Here are four sequential images. The sphere appears almost glowing, seems to have different texture/albedo from nearby clouds.

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#4 Rankinstudio

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Posted 16 February 2013 - 11:07 PM

what time were they taken?

#5 ToxMan

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Posted 17 February 2013 - 06:45 AM

I checked Starry Night, estimating you are -6 hours for UT for somewhere in the western US. Io was in transit at about that time. Best I can do for you, not knowing your location and if the computer clock time is correct.

#6 Sunspot

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Posted 17 February 2013 - 09:12 AM

I don't think that is Io, the spot stays consistent with the clouds. Io move much too fast with respect to the disk. I think it is a disturbance within the clouds itself.

#7 rg55

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Posted 17 February 2013 - 09:23 AM

Thanks for checking. It seems to be at about the clouds' level, so not a moon...it just seems strange that it's so spherical and distinct and seems to keep its integrity. Certainly not Earth meteorology! I'm hoping some better imaging by a larger scope might show more.

The captures were taken between about 10 and 12 the evening of 2/15/2013, MST.

I've attached another image from 2/1/2013 that shows the same feature.

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#8 rg55

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Posted 17 February 2013 - 10:45 AM

Here is a HST image that shows a similar feature.

Below is a link to some multimedia that seems to show similar features forming at about the same latitudes. It may be a transitional stage in cloud dynamics...still, rather strange.

http://en.wikipedia....on_animation...

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#9 Rankinstudio

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Posted 17 February 2013 - 11:23 AM

Maybe these two show it as well?

http://rankinstudio....Jupiter_1.20.13

Pauls image from Jan 20

http://www.cloudynig...5671222/page...

#10 Sunspot

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Posted 17 February 2013 - 11:50 AM

This is part of the enjoyment of planetary imaging. You never know what you might find. Twenty years ago such a feature may have been unobserved. This is why it's so great that we amateurs have been able to forge a good relationship with professionals.

Paul

#11 rg55

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Posted 17 February 2013 - 12:07 PM

That looks like it, David.

Paul, you're exactly right. When I was a kid I wanted to be an astronaut, but here and now we're 'virtual' astronauts, thanks to great technology and great community. I feel like my pictures are postcards, snapshots from my 'travels'. :grin:






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