Another attempt at capturing Rosette nebula. This time I was able to get about 2 hrs of exposure instead of 20 mins for the first try a few days ago. There was also enough time to shoot calibration frames - darks, biases and flats. It is so easy to use these calibration frames in Siril. This allowed for better resolution making the strands and patches of dark nebulosity clearer. I still have to learn some star reduction techniques.