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Gamma Cassiopeia nebula...


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From the last three nights, a stack of 50 x 600s exposures using an Esprit 100/Atik 460 combo through a 7uM Baader H alpha filter...


Plagued by a gibbous moon and high haze, so a bit of a patchy background.  Am waiting for a darker night to get some RGB data.

By the way, does anyone know what the designation of the little knot of nebulosity to the east of IC63/59 (centre left on the above image) is?  It doesn't show up on any tables or planetaria that I have. 

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