Minkowski 2-9 (Minkowski's Butterfly, PK 010+18.2) 　 14.6mag  39"x15"

M2-9 photo

2024.Apr.13 etc.  C14 35cmF11  ZWO ASI294MM, R: R60filter 2sec*441, GB: Baader G,B filter 2sec*932, 673  total 68.2min

M2-9 photo

2022.Apr.8 etc.  C14 35cmF11  Mono: Player One Neptune-C II 3sec*963+2sec*167 (gray-scaled), R: Neptune-C II R60filter 3sec*271, GB: ZWO ASI294MM + Baader G,B filter 3sec*597, 814  total 137.8min

M2-9 photo

2019.Apr.13 etc.  C14 35cmF11+reducer F7  ZWO ASI224MC 3sec*338+2sec*1308 total 60.5min


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