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Quote:Well that's what I thought, the red just pops out so it must be legitimate data. Unfortunately, it can quickly over saturate the image and everything in it, so you must have been very careful in your processing in order to preserve it and the brown nebula. Well done.I have seen this called an extended red emmission nebula (EME). I am not sure what that means.I guess one sure way to see if the data is truly hydrogen is for me to capture 10 hours of 3nm Ha and see what's there. Of course, if I do that, someone will need to belend it with the rest of the data.. HAHA! More work.
RC10''/TeleVue 101/QSI 683 on AP1200 in Arizona http://www.astrobin.com/users/Mark/
Quote:Dave,Thanks for the opportunity.Nice data you have there - perfect focus and guidingIt's remarkable that you have it open for everybodyHere is my modest attempt:http://www.astrobin.com/22693/Mark
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Quote:Congrats to Dave for getting this image in Astronomy Magazine this month!!!Dave did you do the processing or was it someone from the group?Dean