Had a lot of problems trying to pull out enough data to get halfway decent shot. Moon( full rising) and seeeing conditions not good. The green banding in image from camera or processing routine. Really had to fight gradients and just poor data to even get to this point. Managed to get some of the more extensive faint arms and Ha and small nebulositiies contained in galaxy to come out. Probably had to discard 1/2 of all subframes. Hopefully can revisit. Would probably be great target for Ha and RBG blending to increase detail. Thanks for looking.



NGC 2403 is located just beyond the Local Group of Galaxies, at a relatively close 10 million light years away toward the constellation of the Giraffe (Camelopardalis)

As of late 2004, there had been two reported supernovae in the galaxy: SN 1954J and SN 2004dj.

Allan Sandage detected Cepheid variables in NGC 2403 using the Hale telescope, making it the first galaxy beyond our local group to have Cepheids found in it.



25 x 360sec ISO 1600
Darks and flats aplied
Scope: Celestron 1100 On CGE Mount with .63 focal reducer
Guiding with PhD Meade 80mm ED
HUTECH MODIFIED CANON XTi
(Canon Rebel XTi (400DH) spectrum enhanced camera with built-in astronomical UV/IR blocking filter (Type Ib
Calibrated,Stacked DeepSky Stacker Final processing with PS CS3, Noise Ninja and GradientXTerminator