M55 75 mins (90s x 10 L, 120s x 10 each RGB) Skywatcher 150P, 750mm focal length at f5 ASI1600MM Mono Camera instagram.com/astroislander M55 - wider view, same image. 75 mins (90s x 10 L, 120s x 10 each RGB) Skywatcher 150P, 750mm focal length at f5 ASI1600MM Mono Camera instagram.com/astroislander