NGC 281, an Emission Nebula in Cassiopeia

IC 1590, an Open Star Cluster

NGC 281, Emission Nebula; Star Cluster; CCD image thru 20 inch
This is a mosaic of two 22 minute exposures with an ST-1301E CCD camera thru Kopernik's 20-inch F/8.1 Ritchey Chretien Cassegrain telescope working at F/5. It was taken with an h-alpha filter isolating the light of glowing hydrogen gas.

George Normandin, KAS

December 25th, 2011