The Ghosts of Cassiopeia, Owl Cluster and Pacman Nebula in Cassiopeia.
The region of central Cassiopeia containing a rich assortment of deep-sky objects: The Ghosts of Cassiopeia nebulas at top, the Owl Cluster, aka the ET Cluster, at bottom, and the Pacman Nebula at right. The Ghosts of Cassiopeia are the magenta/cyan reflection and emission nebulas officially called IC 59 and IC 63. Both are reflecting the light of bluish Gamma Cassiopeiae, aka Navi. The star cluster at bottom is NGC 457, with smaller NGC 436 above it. It is variously called the Owl Cluster or the Cluster. The emission nebula at right is the Pacman Nebula, NGC 281, below the stars Eta (Achird) and Alpha (Schedar) Cassiopeiae. The blue star at far left is Delta Cassiopeiae, aka Ruchbah. It along with Gamma and Alpha form the middle three stars of the W of Cassiopeia.
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Photo credit: © Alan Dyer/Stocktrek Images / Alamy / Afripics
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