Necklace Nebula
21"
2023. Jul. 16 etc. C14 35cmF11 ZWO ASI294MM L: 5sec*176+3sec*233 + IDAS NB1 filter 5sec*41+3sec*1649, RGB: Baader Planetarium RGB filter 3sec*467, 585, 834 total 206.5min
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