well, here is the image in work, not for careful scrutiny, but because old guys need a closer look!
click the image to return to the index page

the bigger image shows the thin line of the outside shell better. It is mostly O3 according to literature, but it is very! very! weak, whatever it is. also, there is a bit of what might be reflection
haze over the area, just to confuse. I might eliminate the RGB if I can get enough O3. Work in progress: try for much better star reduction! this is awful!.. find some way, at the same time,
to preserve a little real star color. I am afraid the only way might be on the dark side..... bad thoughts....

whatever, I am a little proud of this with "just a DSLR"...

copyright chuck kimball, julian, california, July 2010