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M81 4-12 4-14 4-16 5-01 2021 ST noNR 1600x1033



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Ronald DeBry

M81 4-12 4-14 4-16 5-01 2021 ST noNR 1600x1033

Z61, QHY183C -10C gain 5 offset 8
120x 45"
270x 60"
6 hr total






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