Messier 42 the Great Orion Nebula with the Running Man Nebula (Sharpless 279). This was old data taken on my Esprit 150 and Sony A7s on February 1, 2019. It consists of two stacks. One for the faint areas, 6 - 2 minute subs with an Orion LPR and 3 - 2 minute subs STC DUO filter and one for the core, 6 - 4 second subs. I still managed to blow the core out slightly, haha.