Canon 350D Hap Griffin Baader Mod22x180sec at iso 1600??x600sec (approx. 2 hrs) iso1600 7nm Baader Ha Filter
30 Darks/Flats/Bias
APM/TMB 130/780 RefractorThe same image as previous, but with Hydrogen enhancement using Chris Schur's method for Hydrogen Enhanced Galaxies.The RGB image is split into it's components and the data from the Ha exposure is projected onto the R channel at 100% opacity with the layer set to "screen". The Ha data is also projected onto the B layer in the same manner, but at 15% opacity, which provides color for the H beta line. The RGB channels are then recombined into an image by starting with the G data as the background layer and then projecting the HaR and HaB layers on top of it as "lighten" layers.April 23 and May 17, 2008
