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Shaping up well so far, will ask a couple of questions as I am looking at getting the qhy9 and I have the same scope as you.
Offset and gain settings
15 min subs..... How far can you generally go given you are using f7
Are the filters par focal
Can you put up a 1:1 crop of just a starry area
Isee you have mixed your light time lengths... Not something I have done due to calibration, yournstacking routine may be able to do it i dont think dss does, I assume this image is fully calibrated? Bias flats ?
I believe the ccd chamber is sealed.... So will one set of flats work forever?
That's about it for the questions
The image is shaping up well it seems. Very smooth in the Ha regions, that star seems to be a problem for most scopes one way or another, I'm assuming it's the result of reflections off glass surfaces, you seem to have 4, RGB and another larger one.... Interesting that the rgb reflections are not aligned. You could probably do a color range selection on the halos and desaturate them to some degree. The purple just seems in a larger one not across the image ... Well to me anyway. Given I have the same scope I guess id get exactly the same result..... Worth knowing about.
Cheers Clive
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