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Jupiter Oval BA region

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#1 HentySky

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Posted 14 July 2019 - 03:25 AM

Hi Folks, seeing has been quite reasonable here over the last week due to gentle winds coming in from the west and I managed to capture some reasonable detail around the Oval BA area over a couple of nights.  The image taken on 8/7/2019 shows the red oval spot reported by BQ Octantis.

 

The winds have now shifted back to the east so seeing here will be rubbish for while.

 

Cheers Brett

 

 

Attached Thumbnails

  • 2019-07-08-1449_8-LRGB p4.jpg
  • 2019-07-11-1335_5-LRGB p5.jpg
  • 2019-07-11-1610_0-LRGB p4.jpg

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#2 BQ Octantis

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Posted 14 July 2019 - 03:30 AM

Excellent captures, mate! Timely, too.

 

Picked up Jupiter with the eyeball at 17:52 local, with sunlight still on my fence. Through the eyepiece, there's just not enough contrast with that much blue in the field to make out much detail. I could make out the line in the SEB east of Oval BA that makes Jupiter look like it's grinning, but not much elseā€¦

 

BQ



#3 astrolexi

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Posted 14 July 2019 - 05:03 AM

Amazing images!

 

Thank you for reminding me how Jupiter looks like! I live at 50 deg. north...frown.gif 

 

Best wishes

Klaus



#4 phileefan

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Posted 14 July 2019 - 05:16 AM

Very nice Brett! Good job. waytogo.gif



#5 Kokatha man

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Posted 14 July 2019 - 05:33 AM

Nice images Brett! waytogo.gif waytogo.gif

 

I think it might be a bit of a stretch to label that high-polar storm as "red" - I believe it has been around for a long time actually with our own images from early in this apparition displaying said: but a lot has been happening on Jove besides the GRS activity & I'm wondering about that prominent barge that was between the 2 large storms "below" (S) of the GRS..."above" on your images! ;)

 

Your 2 top images pick up the turbulence following OvalBA quite well, which is almost devoid of colouration now.



#6 HentySky

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Posted 14 July 2019 - 06:08 AM

Thanks for your comments everyone.

 

Darryl, I agree, it is a bit of a stretch to say it is red but there is a touch of red in it.  I mainly mentioned it as BQ  Octantis was asking if anyone else could image it.

 

Cheers

Brett



#7 MikeTahtib

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Posted 14 July 2019 - 08:19 AM

Great pictures.  What does "BA" mean?



#8 HentySky

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Posted 14 July 2019 - 11:25 AM

I believe "BA" is a alpha descriptor for storms in the south temperate belt and has no meaning as such.  Ovals BC and DE merged in 1998 to form BE, then in 2000 BE and FA merged to form BA.  I obviously don't get out enough!


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#9 MikeTahtib

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Posted 14 July 2019 - 11:31 AM

So is there any rationale for the descriptors?  Like B is for south temperate belt, D is for some other belt, 2d letters sequential, etc?  Or is it just random letters getting assigned? Who assigns and publishes these?



#10 CPellier

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Posted 14 July 2019 - 04:45 PM

So is there any rationale for the descriptors?  Like B is for south temperate belt, D is for some other belt, 2d letters sequential, etc?  Or is it just random letters getting assigned? Who assigns and publishes these?

The story goes back to the 1930's when three dark segments appeared in STB, and the observers of the time designed them as AB, CD, EF...

Only 10 years after they got aware that the three spaces between them where the interesting features to look for. Those were contracting anticyclonic cells in the STZ. Then they called them BC, DE, FA.


Edited by CPellier, 14 July 2019 - 04:45 PM.


#11 stuart keenor

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Posted Yesterday, 12:47 PM

Lovely images Brett

#12 CrazyPanda

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Posted Yesterday, 02:31 PM

Can't believe how tiny the GRS has gotten.




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