Cat's Eye Nebula NGC6543 as RAWMono-Autosaves using various ISO's and two to three minute exposures .. ISO1600 and 3200 and 6400 . Early this morning I was doing then ..Friday the 13th June 2018 .. the sky was about 5% blurred with 95% visabilty and I had to use .25xSiderealGuideRate because 1xSidereal wouldn't do it . MaximDL Pro was used for everything with the Rebel T7i . 25 images were 'Manual 2 Star' stacked .... this is as good as I could get it and "Rank Filter 5% Radius and 40% Contrast" was used and 'screen-stretch' to darken the background agitation ... the image is cropped and "Double Size" because the nebula is small . Mizar and it's companion Alcor were used for a 'Live View' focus and the same focus position was used on the NGC6543 . x
