Abell72
12.7mag 134"*121"
2021.Sep.15 etc. C14 35cmF11+reducer F7 ZWO ASI294MM, L: 3sec*259 + IDAS NB1 filter 5sec*1336, RGB: Baader Planetarium RGB filter 10sec*225, 399, 454 total 303.9min
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