This is 240x30s (2 hours) from February 2020 with my Sigma 105 at f1.4 and Canon Ra at iso 400 combined with 177x30s (1h28.5m) of frames from December 2020 with my Sigma 105 at f1.4 and my Canon 6D at iso 800. All the frames were stacked/processed in Pixinsight.