SATURN - MAGIC MALLEE MORNING SEEING..!!! EDIT!!!
Posted 28 March 2013 - 06:13 AM
But full marks to Emil & Sean, you were quite correct imo to point that out: here is a version I hope folks can live with a bit better .....although tbh it was something I was already aware of and the last paragraph (below in bold) explains it somewhat although I go into greater details in my reply down the thread - I was "processed-out" with loads of data still unexplored etc and I just wanted to post these and take a break.....which is why I didn't respond to anyone beforehand: but I apologise for that and am about to reply below...
Hi folks – Pat & I never lose the passion and eagerness to get out under open skies where/when we image the planets, and of course Saturn is one of those planets that can almost take your breath away no matter how many images and how satisfying the outcomes are…..
So after the weather scuttling our hopes of going out on the Sunday to the disused sportsground out in the Murray Mallee, we found ourselves making another Monday afternoon/evening trip in the hope of some sort of opportunity even though the forecasts suggested “decent” seeing at best around midnight with a high probability of cloud/transparency issues (this is the 3rd Monday in a row we’ve gone to this delightful spot..!)
As we got closer to the general area we were dismayed to see a very large pall of smoke stretching North to South as far as we could see, along with rain falling from clouds off in the distance.
I pulled up (we had the caravan in tow) and got out to gauge the wind direction (a due Westerly) although it was very light…..but for some reason I wasn’t feeling too pessimistic – that’s always a possibility, but with the van we knew we could have a nice meal and get plenty of sleep beforehand, as well as go back to bed in comfort if the skies didn’t cooperate..!
Anyway, to cut a long story shorter  the clouds that had covered nearly all the sky for most of the day dissipated around midnight and we got up about 1:20am, switched everything on and did a collimation on Spica, taking our time to get it as right as possible and at least thinking the star patterns showed the seeing wasn’t too foul at all.
We were imaging just after 1:30am with fairish onscreen images but a tad before 2:45am I muttered to Pat that the seeing had suddenly “GTTFR” (as I held my breath, just as I do every time I see a very good onscreen image - always wondering how long it will last… )
She joked about what that meant and I explained to here I thought the seeing had “Gone Through The $@&%*#! Roof!”
An hour and a half later it was still right up on the screen so we did what I’d been meaning to do for ages – use the variable image scale unit I’d made and had never before adjusted during imaging…
Slid the camera back about an inch (later found out the f/l effectively went from around 53/400 to about 6000mm) and refocussed and went on imaging…..
Apart from the transparency which manifested itself as a quite thick visible haze around Saturn (the Moon was out) the seeing must’ve been around 8 or 8.5/10…..transparency maybe only 7/10 at best with some poorer periods also.
Anyway, I have been a bit processed out lately and being really honest we looked at all the avi’s and decided to only process the larger-scaled ones first…..there is a period of over an hour where 7 rgb sets are all of a very high quality…..but I’ll leave those for later to process.
Here’s the best (I think) 6000mm f/l rgb set at around 170% capture scale…
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Posted 28 March 2013 - 06:33 AM
Do you took 3X drizzling in AS2 and then resized to 170% ?
Posted 28 March 2013 - 06:33 AM
The spotty cloud details strung out in longitude is wild.
One of the best Sarurns Ive ever seen.
Posted 28 March 2013 - 06:42 AM
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Posted 28 March 2013 - 07:00 AM
Those are the best images of Saturn yet.
Posted 28 March 2013 - 07:53 AM
Posted 28 March 2013 - 08:03 AM
I would like to nominate Darryl and Pat amateur astrophotographers of the year! Do I hear a second?
Posted 28 March 2013 - 08:06 AM
In case it isn't clear, tongue is firmly in cheek with the above comment - those Saturns are superb. As Pete says, it is really rare to see Encke's so clear for so much of the ring. And the detail on the disk is fantastic. The animation really helps nail down the many subtle features.
Posted 28 March 2013 - 08:54 AM