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Quark
29-09-2009, 01:35 AM
Hi All,

Imaged Jup in fair conditions seeing 6/10. Over the last few weeks a small white oval and red spot in the NNTZ at CMII 320 degrees, have been coming together and have merged. I have posted an image from Sept 14th in which the white oval and red spot can be seen close by just to the right or west of the white spot in the NNTZ and in my image from tonight they have merged, the red spot is now more bloated and much lighter in colour.

The result of the merger has left a thin white ring around the original red spot or oval.
It helps to blink between these two images to see the result of the merger. The two features in question are in the lower part of the image or Northern temperate zone, in the earlier image the small bright white spot is clearly separated from small red feature, which looks a bit like a dust storm. In the image from Sept 28th both features have merged, the red oval is larger and an overall lighter colour with a thin white line outlining it, from the original small white oval.

Thanks for looking.
Regards
Trevor

iceman
29-09-2009, 03:22 PM
Very nicely done, Trevor. Excellent images yet again.

leon
29-09-2009, 04:23 PM
Trevor I'm not much of a Planet imager, well actually not at all, but you certainly know your stuff, fine capture indeed.

Leon

Quark
29-09-2009, 04:55 PM
Thanks very much Mike, I suppose these merger events must happen pretty frequently but this is the first time I have imaged one. These two features have been coming closer together over the last few weeks.

I had previously imaged them on Sept 14th with clear separation between them, Brian Combs imaged them in contact with one another on Sept 25th and in my image from last night, Sept 28th, the merger is complete. That seems to have been a very rapid process indeed. I was very pleased to capture this as I will not be imaging again for about 3 weeks.

The evolution of the SL9 impacts and the Bird Strike have evolved over considerable time, about 3 months, this merger has occurred in just a few days. Have you seen events such as this occur previously in such short time scales?



Thanks Leon, Saturn is my main interest but I am contributing what I can with Jupiter until Saturn comes out from behind the Sun. There seems to be a lot more professional interest in the dynamics of Jupiter's atmosphere and interest from these people in amateur data on it.

Jupiter is a much more dynamic world with considerably more atmospheric activity than Saturn and I am learning more about it as I go.

Matt Wastell
29-09-2009, 06:06 PM
Hi Trevor

Great work - looking forward to seeing your Saturn - rings opening the other way.
Thanks for sharing!

Lester
29-09-2009, 07:11 PM
Hi Trevor, great capture of the merger.

Thanks for the view. Still cloudy here.

Paul Haese
29-09-2009, 07:15 PM
That red oval I must have captured 10 or 20 times over the years. It is fascinating to see it change as it has. Nicely captured. I now know which one John was talking about.

Quark
29-09-2009, 07:37 PM
Thanks Matt, yes, I am really looking forward to becoming reacquainted with Saturn, I haven't imaged it since July 20th and that was through the top of a palm tree in my next door neighbors back yard. I hope bigger and better electrical storms are brewing for the next apparition.



Thanks Lester, John Rogers put out an alert, asking for high res images of the merger and I was just fortunate with the weather.



Thanks Paul, this merger really did seem to happen very quickly and it is the first one I have imaged. Have you seen this sort of phenomena previously happen so quickly?

RobF
29-09-2009, 08:38 PM
Never get tired of reading these great posts Trevor. Does make me feel guilty to chasing "nice picccies" rather than doing more serious work like you describe.

(where's the emoticon for a salute.....?)

Paul Haese
29-09-2009, 10:51 PM
Trevor, actually that red spot that was gobbled up last year by the GRS was pretty exciting. One day it was there and one day it was gone. Yeah that is pretty fun to capture this. Well done again.

Quark
30-09-2009, 10:28 AM
Nothing wrong with making nice piccies, it wasnt that long ago that I thought it was only possible to achieve one or the other, however now I have come to believe that it is possible to produce images of scientific value that also have aesthetic appeal.



Thanks Paul, I look at the frenetic action that can occur in the SEB & NEB and sort of expect mergers and the like to occur, however closer to the poles has to me, seemed a more placid region and I didn't expect this to pan out as it has.

Quark
30-09-2009, 10:31 AM
Hi All,

Have just converted these images to polar projections, using Win JUPOS 8.0.13 and have created an animation that blinks very nicely.


Thanks for looking.
Regards
Trevor

Lester
30-09-2009, 12:34 PM
That hilights the changes Trevor, although a bit fast for my eyes after 5 minutes.

Thanks.

Quark
30-09-2009, 01:46 PM
Sorry about that Lester, it was to quick, I have slowed it down considerably in this version.


Cheers
Trevor

bird
02-10-2009, 05:07 PM
Nicely done Trevor, was nice to get back after a work trip the last few days and see these images...

cheers, Bird