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Dimensions1066 x 891
Original file size376 KB
Image typeJPEG
M1 HaRGB - Collaborative Image

M1 HaRGB - Collaborative Image

RGB:
Canon 350D Hap Griffin Baader Mod
30x180sec at iso 1600
30 Darks/Flats/Bias
Celestron 9.25 reduced 0.63

October 28, 2008

Hydrogen Alpha:
Meade DSI Pro 2 Mono
15x300sec
Darks/Flats Applied
Meade SN8 Reflector
Baader 1.25" 7nm H alpha filter
November 23, 2008

Sky and Telescope Online Gallery March 27, 2009

This 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.