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Thor's Helmet NB
I am a bit concerned about this image as it hasn't present the same problems as my previous dabbles in NB imaging. When I have tried I have had horrible purple halos around the stars but no such problems with this one. I am still not sure that I have the processing right.
The data was collected over 3 nights. I was surprised that the 13.5 hours of Ha, SII and OII data (20 minute subs) still produced quite a bit of noise. After stacking combining (Hubble pallet) in CCDStack I adjusted levels and curves in PS, used Noise Ninja to reduce noise and a high pass filter to sharpen it some.
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