NGC281 - The Pacman Nebula


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Found directly beneath the 'W' of Cassiopeia

Scope: Planewave 12.5" CDK
Camera: Apogee U16M w Astrodon 5nm H-Alpha and OIII Filters
Mount: Paramount ME guided with Borg 60 and ST-402ME 
15 x 15 min H-alpha
18 x 15 min OIII

Acquired in CCDSoft5
Dark and Flat calibration, Alignment and Sigma Reject combine in Maxim
Curves, Contrast Adjustment, Levels in PS CS6

Combined as RGB = Ha OIII OIII

Flesherton, Ontario
July 2013