Ok , jetstream was not yellow any more and the stars had a slight twinkle. Mars thru the 5mm vixen had slight colour split ie blue up top and red down bottom, so seeing wasn't great, but a lot better than it was.
Telescope was left outside to cool and ice packs were added to the bottom of the mirror cell. At least this kept the mirror within 2 degrees of the rapidly falling ambient. Also left the sucking exhaust fan on as well
3am: 2.5 degrees ambient and 4.5 degree mirror. It had been 19 degrees at 8.30pm!!!
Anyway, made sure collimation was right - check!
Raw mode back to std colour for toucam - check!
Temp swayed between 1.5 degrees and 2.5 degrees for the two hours.
Transparency was 10/10 - no moon no cloud!
I have 2 videos to start processing of saturn at 50% gain and 75% gain.
Here are some to start
- 50% gain - complete video with 95% (54 frames)gradient limit - soft wavelets
- 50% gain - complete video with 90% (248 frames)gradient limit - medium wavelets
- 50% gain - complete video with 85% (619 frames)gradient limit - medium wavelets
- 50% gain - complete video with 80% (1849 frames)gradient limit - medium wavelets
- 50% gain - new PPMcentre to grade the best 50 images, stacked in registax, no wavelets
First thing i am happy with is the colour, it is finally looking right and secondly, i am getting better at judging seeing. I could see the cassini division thru the 5mm vixen, but as you can see, the cassini division on video has not come out all the way around. So i would put the seeing as 5 or 6 out of 10.
I 5x powermated the 5mm vixen on both saturn and jupiter and was happy with the result. On a great seeing night (8 or 9 or 10 /10), i believe that this could be used as proper viewing setup!
I still have to do the 75% gain and also LR or ME deconvolution etc, but i cam happy i am on my way finally with saturn.