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Kecktastic
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Reged: 01/16/10

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Saturn Feb 1st, spots & polar storm
      #5659235 - 02/03/13 01:12 AM Attachment (103 downloads)

Hi All,

Imaged Saturn Feb 1st in variable seeing, the best of it being quite reasonable. I noted the recent message circulated by John Rogers to our group regarding the hexagonal polar storm imaged quite nicely by Darryl. Through 2012 as the Nth pole became more visible this polar storm started to show up, particularly at 807nm IR although it was also visible in some R and RGB data. I am confident that a search through the PVOL data base would reveal many examples of it. I have never previously seen a polar map of it though, it has never really been a priority for our work with Georg and the RPWS data. Having said that I have attached a polar map from one of my RGB data sets for Feb 1st and clearly the hexagon can be seen. The hexagon can also be seen in the individual RGB & 742nm IR images. I have also attached an animation of 3 RGB data sets that covers the rotation over a 35 min period, I note that this animation reveals a few degrees rotation of the hexagonal polar storm.

Probably of greater interest to our RPWS work are some interesting details in the NEB. In the animation is a well defined spot mid way through the NEB, just to the Preceding side of the CM and moves toward the "P" limb. Also at a similar latitude in the NEB but starting from back toward the Following limb and moving toward the CM is another reasonably bright feature, however it seems to be more stretched out rather than just a spot.

Regards
Trevor


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Kecktastic
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Re: Saturn Feb 1st, spots & polar storm new [Re: Kecktastic]
      #5659236 - 02/03/13 01:13 AM Attachment (53 downloads)

RGB01

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Kecktastic
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Re: Saturn Feb 1st, spots & polar storm new [Re: Kecktastic]
      #5659237 - 02/03/13 01:14 AM Attachment (37 downloads)

Polar map

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Kecktastic
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Re: Saturn Feb 1st, spots & polar storm new [Re: Kecktastic]
      #5659238 - 02/03/13 01:15 AM Attachment (32 downloads)

RGB02

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Kecktastic
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Re: Saturn Feb 1st, spots & polar storm new [Re: Kecktastic]
      #5659239 - 02/03/13 01:16 AM Attachment (36 downloads)

RGB animation

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Freddy WILLEMS
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Reged: 11/13/05

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Re: Saturn Feb 1st, spots & polar storm new [Re: Kecktastic]
      #5659279 - 02/03/13 01:56 AM

Now that's a very nice and clear Polar projection Map Trevor. Great detail and sharp Hexagon all around (almost)..Now if you can capture the lightning that would be awesome, but that might require a 'special' filter ($$$)..

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wenjha
Vendor


Reged: 09/24/08

Loc: SuZhou China
Re: Saturn Feb 1st, spots & polar storm new [Re: Freddy WILLEMS]
      #5659309 - 02/03/13 02:38 AM

Yes,very clear

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ZielkeNightsky
Pooh-Bah
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Reged: 10/01/06

Loc: Denmark
Re: Saturn Feb 1st, spots & polar storm new [Re: wenjha]
      #5659439 - 02/03/13 07:16 AM

Great set of images and animation. Most impressive

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Mitchell Duke
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Re: Saturn Feb 1st, spots & polar storm new [Re: wenjha]
      #5659443 - 02/03/13 07:19 AM

Wow awesome detail in the Hex storm!

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ToxMan
Carpal Tunnel
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Reged: 01/23/11

Loc: Tucson, Arizona, USA
Re: Saturn Feb 1st, spots & polar storm new [Re: Mitchell Duke]
      #5659498 - 02/03/13 08:21 AM

Quote:

I am confident that a search through the PVOL data base would reveal many examples of it. I have never previously seen a polar map of it though, it has never really been a priority...



I'm certain you are correct. When I brought the hexagon feature to Darryl's attention a few days before he posted a better image of it, I thought of the hexagon as another feature we could strive to resolve. And, the significance would come at a later date. It's the first time we (amateurs) have had scopes, cameras, techniques and Saturn's tilt to get a "look" at it.

Very nice presentation, Trevor.

Hope the heat isn't drying you up and blowing you away, like a tumbleweed. You folks "down under" are really taking a "solar beating."

Paul


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Rankinstudio
Carpal Tunnel
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Reged: 04/05/08

Loc: Southern UT
Re: Saturn Feb 1st, spots & polar storm new [Re: ToxMan]
      #5659663 - 02/03/13 10:18 AM

Awesome set of images Trevor

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lcd1080
scholastic sledgehammer


Reged: 06/03/10

Loc: Maryland, USA
Re: Saturn Feb 1st, spots & polar storm new [Re: Rankinstudio]
      #5659720 - 02/03/13 10:53 AM

The hexagon in your polar projection looks so clear it would fare rather nicely in a geometry textbook, beautifully done Trevor! Did you derotate the R, G, and B channels individually and/or collectively?

Pete


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Az Frank
Carpal Tunnel


Reged: 10/18/08

Loc: Tucson Arizona
Re: Saturn Feb 1st, spots & polar storm new [Re: lcd1080]
      #5659961 - 02/03/13 01:07 PM

Looks like some of your best work so far this aparition Trevor! No doubt about the hexagon in your projection map.Evident in your other images as well!Excellent job!

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bunyon
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Reged: 10/23/10

Loc: Winston-Salem, NC
Re: Saturn Feb 1st, spots & polar storm new [Re: Az Frank]
      #5659971 - 02/03/13 01:11 PM

Now that Jupiter is going away, I'm getting very jealous of you southerners. Not only is it warm, you have Saturn up high.

Fantastic images and a really nice animation. Thanks for giving us a look.


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Kecktastic
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Re: Saturn Feb 1st, spots & polar storm new [Re: Freddy WILLEMS]
      #5661115 - 02/04/13 03:59 AM

Thanks Freddy, reckon it would be really awesome to image the aurora at the Saturnian poles, Hubble has managed it but then the HST cost just a little more than my rig and is in a marginally better position.

Appreciate your comment Sam.

Thanks Mitch, in a few more years as the ring tilt opens wider the entire polar region containing the hex will be available to us.

Thanks Paul, in another 15 years we will be getting a similar view of the South Polar region to what we are currently seeing with the North Pole. I suppose, with an orbit of close to 30 years it takes a bit of time to see all the faces of Saturn but see them we will, well I will if I live long enough. Imagine what sort of equipment might be available then.

Thanks for the kind words David.

Thanks Pete,I derotated the R's from each set to create a new & improved R, did the same with the G & B data then merged them by derotating the new R, G & B to create the final image.

Thanks Frank, sadly I would have to agree that this is my best thus far for this apparition, however the seeing was quite variable with the best of it quite nice but rather a lot of very ordinary stuff mixed in with it. It would be great to get some good seeing to take full advantage of the really nice alt rather than be over processing marginal data to get a fair result.

Thanks Paul, yep, sure has been warm out in these parts of late but Saturn is rising higher and higher and for sure the weather will become milder and bring with it better imaging conditions.


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Kecktastic
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Re: Saturn Feb 1st, spots & polar storm new [Re: Kecktastic]
      #5661116 - 02/04/13 04:03 AM Attachment (12 downloads)

Have done a Polar projection map of the 742nm IR data posted here. This is 21 min's prior to the RGB Polar projection map I originally posted.

Edited by Kecktastic (02/04/13 04:04 AM)


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Kecktastic
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Re: Saturn Feb 1st, spots & polar storm new [Re: Kecktastic]
      #5661119 - 02/04/13 04:07 AM Attachment (13 downloads)

A Polar projection map of the 2nd RGB in this post at 19-01 UTC which is 20 minutes after the initial RGB map in this post.

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Mert
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Reged: 08/31/05

Loc: Spain, Pamplona
Re: Saturn Feb 1st, spots & polar storm new [Re: Kecktastic]
      #5661304 - 02/04/13 08:56 AM

I doubt Hubble is in marginally better position, is there
any good beer out there?? LOL
Great images Trevor, always good to see work from you!!


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ZuoZhao
sage


Reged: 10/16/12

Re: Saturn Feb 1st, spots & polar storm new [Re: Mert]
      #5661322 - 02/04/13 09:07 AM

Nice! My DOB10 cant show any details!

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mitovka
professor emeritus


Reged: 06/08/10

Loc: Slovakia, CE
Re: Saturn Feb 1st, spots & polar storm new [Re: ZuoZhao]
      #5661792 - 02/04/13 01:32 PM

Impressive work Trevor!

ZZ I do not believe you...


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