RGB:Canon 350D Hap Griffin Baader Mod30x180sec at iso 1600
30 Darks/Flats/Bias
Celestron 9.25 reduced 0.63October 28, 2008
Hydrogen Alpha:
Meade DSI Pro 2 Mono
15x300secDarks/Flats AppliedMeade SN8 ReflectorBaader 1.25" 7nm H alpha filter
November 23, 2008
Sky and Telescope Online Gallery March 27, 2009This is a collaborative effort with Ted Rafferty adding his
Hydrogen Alpha data to my RGB data to make, what I think, is a far superior image.
The two sets of data were registered and aligned in DeepSkyStacker and combined in Photoshop CS3.
The combine method used is one described by
Russell Croman. Layer masks were used to keep star colors true while allowing the Ha and RGB to combine in a way to optimize the nebula's appearance.