Double Nebula and Double Cluster
This star-rich area of sky lies in the Milky Way on the border of Cassiopeia and Perseus. The Double Cluster in Perseus (NGC 884 and NGC 869) is at the upper left. On a clear night from a dark observing location, the Double Cluster can easily be seen with the unaided eye as a diffuse smudge of light forming a long equilateral triangle with epsilon and delta Cassiopeiae. The Double Nebulae, at the lower right, are two large complexes of faint emission nebulosity in Cassiopeia. IC 1805, the Heart Nebula, is at lower left. LBN 667, the Soul Nebula, is at the upper right. Both are red hydrogen-alpha emission nebulae that are star forming regions. North is to the upper left in the above image.
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