NGC 281, Emission Nebula and Open Cluster in Cassiopeia
AP155, F7, STL11000, H-alpha color composite, H-alpha 150 minutes, RGB= 30:30:30 minutes
NGC 281, Emission Nebula and Open Cluster
in Cassiopeia
AP155, F7, STL11000, H-alpha color
composite, H-alpha 150 minutes, RGB= 30:30:30 minutes