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NGC225 VdB4   © Ken Crawford      Rancho Del Sol Observatory  MPC G67
Image Exposure Details
Filter Exposures
Clear/ Lum 420 minutes
Red 180 minutes
Green 140 minutes
Blue 200 minutes
Ha 5nm 0 minutes
OIII 3nm 0 minutes
SII 5nm 0 minutes

NGC225 is an open cluster in Cassiopeia discovered in 1783. There is an associated dark nebula complex cataloged as VdB4. Some of the dust in the nebula is reflecting the blue light from the nearby blue stars giving the dusty structures its eerie blue cast.
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VdB4 revealed with over 15 hours of total exposure time with Astrodon LRGB Filters.

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Cass A Ha-OIII

IThis inverted image better shows the dusty regions of VdB4.