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This is one of the classic "double objects" in the sky, consisting of two rich open clusters whose centers are just a half a degree apart, and commonly referred to as the Double Cluster in Perseus. On the left is NGC 884, on the right is NGC 869. This extra-deep exposure used an H-alpha filter in addition to LRGB to capture some of the very faint hydrogen nebulosity in the neighborhood of this famous pair of clusters.