Quote:
Originally Posted by Amaranthus
Helix emits very little in the SII band - I recently tried to milk what I could out of that filter (I went deeeeeeep) but still not much joy - in hindsight, I shouldn't have bothered. The action is all in Ha (rim) and OIII (centre) for NGC 7293...
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That is what I found. Ha was good as was O3, But the O3 might have been over exposed. The S2 had almost no data. The problem I have is to combine the Ha and O3 after stacking them seperatly. When I tried to combine them in PSP the image looked like crap. I need to learn how to combine them properly.
Charles