NGC6537
11.6 mag 10"
2021. Aug. 02 etc. C14 35cmF11 Mono: IDAS NB1 filter ZWO ASI294MM 3sec*537 (+Gray-scaled color image), Color: +reducer F7 ZWO ASI224MC 3sec*634 + 2sec*179 + 1sec*35 total 65min
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