M820220830ASI533mm procooling +(0°)sharpstar 61edph Ⅱ +reducerguide asiair pro Hα-HαGBHα:gain360 120s×30stacks dark+flat-G:gain360 10s×30stacks dark+flat-B:gain360 10s×30stacks dark+flat- SI9でHα-HαGBの要領でカラー合成。星マスクで少し星の…