IC2120
12 mag 60"
2020. Dec. 1 etc. C14 35cmF11+reducer F7 Mono:ZWO ASI294MM-Pro+IDAS NB1filter 10sec*894, Color:ZWO ASI224MC 10sec*377 total 211.8min
惑星状星雲でなく散光星雲の可能性もある天体です
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