Received my Hydrogen Alpha filter yesterday and we got lucky and had a couple hours of reasonably clear sky. Although I didnt get as many exposures as I'd liked, my first real attempt at narrowband imaging was a success. I imaged 2 objects - the Ring Nebula (M57) and
NGC 6888, the Crescent Nebula in Cygnus. The Ha frames that I took of the ring were washed out possibly due to clouds, but the Crescent came out just fine.
I have never before gotten this much detail on this object before. In the past, I was able to capture the bright outline with a tiny amount of the inner nebula.
The above image consists of only 25 minutes of H Alpha and 25 minutes of O3. Ha was mapped to red, Oiii mapped to green and blue. I used the Ha stack as the luminance. This was done with my light polluted backyard, and the Oiii was taken during the last full, supermoon.
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