Jup Sept 15th GRS transit & Wesley Impact Polar Animation

[Quark]

Hi All,

Had some very nice seeing last night Sept 15th. It was a very still night and the seeing was pretty consistent for the just under 3 1/2 hrs of my imaging session.

I have posted my best image from the night. The GRS is very well defined as is the stream of material above it in the STrZ. There are many white ovals to be seen in the STrB and some very fine detail in the North Polar region, overall I am pretty pleased with this image.

I have also posted an animation of all 7 of my RGB's, taken at 20 degree longitude intervals CMII, from long 80 to long 200 degrees. This includes the entire transit of the GRS with the Wesley Impact remnant rotating into view in the final 4 frames of the animation. I have slowed down the frame rate of the animation somewhat. This makes its progression a little jerky but give more time to absorb the amount of detail in the images.

http://www.iceinspace.com.au/uploads/20090915JupAnim.gif

The Wesley Impact remnant is becoming very diluted and difficult to see. Images of it need to be captured in good seeing to reveal it at all.
With this in mind, I have constructed a Polar Animation using WinJUPOS 8.0.13 and within the animation I have inserted lines indicating the impact remnant, to make it easier to identify. This animation is of my final 4 RGB's for the night which have the Wesley Impact remnant on them, again at 20 degree longitude CMII intervals, from long 140 to long 200 CMII.

Although very diluted the impact remnant can still be seen quite nicely in this animation.

http://www.iceinspace.com.au/uploads/20090915JupPolarAnim.gif

Thanks for looking.
Regards
Trevor

[Dennis]

Hi Trevor

Another exquisite image of Jupiter and a fabulous animation. Thanks for posting these; I enjoyed reminding myself of what good seeing (and expert acquisition & processing!) looks like!

Just loved the Polar Projection view!

Cheers

Dennis

[Lester]

Another outstanding image Trevor, the detail in the GRS took my attention, like a giant coil spring.

[iceman]

Another beauty, Trevor. Lovely colours and processing.

The red spot following the GRS is continuing to be interesting!

[bird]

Lovely work Trevor, lets hope the good seeing continues for a while longer!

Bird

[Quark]

Thanks for your very kind words Dennis I really do appreciate your comments. I do think the Polar projection does a particularly good job of defining the impact remnant.



Thanks Lester, after viewing Anthony's most excellent image taken 14 minutes earlier, I came back and had a closer look at this image. I to, had never noticed the blue C shaped feature within the GRS previous to seeing it in Anthony's image.

The difference in image scale makes it more difficult to detect, however it is present in this image. At my image scale it is about 1 mm inside the western edge of the outline of the GRS. The blue colour is subtle but nevertheless is present.

We are situated about 1,000 km apart but the air mass between us must have been very stable on this night.



Thanks Mike, a bit more to the images on this night than is immediately apparent, the appearance of this thin blue C shaped line within the GRS is most interesting.



Thanks Anthony, I certainly hope so. We have a front moving over at the moment creating some drizzle but the next high pressure system looks like a big one.

Anthony, I wondered if, with all of your experience, you have ever detected this blue partial ring within the GRS previously or have any idea what might cause it.