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Caldwell 56 (NGC 281) Pacman Nebula

Pacman emission nebula in Cassiopia.

Date 9th September 2009
Telescope 250mm F4.8 Newtonian Reflector with MPCC coma corrector
Filter 12nm H-alpha (Astronomik)
Exposure (seconds) 16 x 600s H-alpha
Software CCDStack