![]() I happen to really like doing the calibration and stacking within PixInsight but I know others still use other tools like Deep Sky Stacker. This tutorial is going to start with the stacked, calibrated images (darks, flats, flat darks). However, I like using 45 minutes when I can get it because Winsorized sigma clipping works better. I can get by with less than that and sometimes go with just 30 minutes color. Each color channel had 45 minutes of time. Total exposure time for luminosity was 1 hour 55 minutes. Flats were taken for each of those 4 channels individually. A Celestron Powerstar III 8" SCT with a f/6.3 reducer flattener was used so the focal length is close to 1260mm. The data itself was taken on the night of September 4th, 2013. So I'll have to be reducing the size of some of the results/and or cropping them for display here. And secondly, the max size for a picture is 800x800. First, there is a limit of one picture per post. This is not an ideal format for this for at least two reasons. If you have an alternative you think is better, by all means speak up. ![]() But I'm pretty sure we will end up with a usable result. Likewise, the choices I make when processing this may not be optimum. But in a way, that is a good thing since it will require techniques and such that better data might not. This data we will be using is not perfect it has significant warts. This version leaves out the comments by others, makes some corrections, etc.įirst, let me state flat out, I am NOT an expert in either PixInsight or Image Acquisition. The original thread is still available here: This tutorial was originally written as a thread on Cloudy Nights.
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