have been collecting snippets of high res Ha on M16 and looks like this will be all there is for the season - the seeing has recently fallen into a deep hole. I also have some O3, but any attempt at colouring reduced the impact of the image to my eyes, so it remains Ha only.
Used drizzle super-res and got about 10% reduction in FWHM, so the original data was slightly undersampled. Intensity levels are aimed at maximising the impact of the main pillars, so the rest of the image is a bit subdued.
That's amazing Ray. Best I've seen to date.
Those stars are amazingly round. Care to elaborate a bit on the processing you did. Also did you use the newt? Is that cropped? AO used? What mount did you use. EQ8? Length of subs?
That's amazing Ray. Best I've seen to date.
Those stars are amazingly round. Care to elaborate a bit on the processing you did. Also did you use the newt? Is that cropped? AO used? What mount did you use. EQ8? Length of subs?
Very generous comment thanks Marc.
70 subs at 5 minutes taken over few months whenever Ha seeing was good and I wasn't doing something else. EQ6 with a 250f4 Newtonian, RCC1 and H694 camera - 6nm Ha.
No AO, just a converted finderscope and QHY5L2 as the guider. Processing was drizzle 2x followed by deconvolution on linear data with (PI derived) synthetic star PSF. then stretching and a little bit of local wavelet sharpening and noise reduction. Stars were in pretty good shape, but the combination of drizzle and deconvolution produced minor artefacts at the edges of the brightest ones, so they were tidied up in StarTools - hence the perfect roundness. Then image was downsized 0.75 and cropped from 13.5mp to 7.1mp for composition and to remove regions where minor setup changes had led to poor overlap.
you guys are a pretty tough audience - never thought I would have to apologise for stars that were too round
for interest, this is what they looked like before tidying and a bit of sharpening etc - they were not all that bad to start with, apart from the artefacts.
Some incredible resolution Ray, very impressive. Definitely one of the sharpest Pillars I have seen, if not the sharpest. A colour version of that would be incredible! Great work
Some incredible resolution Ray, very impressive. Definitely one of the sharpest Pillars I have seen, if not the sharpest. A colour version of that would be incredible! Great work
thanks very much Rolf. I have not yet been able to put together a decent colour version - will post if I manage it sometime. The data is OK - my skills are lacking.
Well my, my. Puts those 17" and 20" results on lofty peaks to shame doesn't it? Yeah, the stars are too round, too hard. It's not color, blah, blah, blah. This is a masterpiece of detail and processing talent.
thanks
Yeah, the stars are too round, too hard. It's not color, blah, blah, blah. 
...wow? 
