Just wondering what the possibilities are. This is 41+ hours on the Headphones Nebula with a Celestron RASA `11" and a Celestron/Astrodon LP filter. The camera is a ZWO ASI6200MC Pro. The temp was 0C, and the data is calibrated with bias, flats and darks. The pixel scale is 1.25"/pix. The sky here on the edge of the Rockies is turbulent. I have a 14,256' peak 25 miles due west!
https://astrob.in/hy5ekr/0/
https://astrob.in/hy5ekr/0/