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Rosette Nebula

Optolong L-eXtreme Processing Request for feedback
6 replies•169 views
John P avatar
John P avatar
Not quite sure what to do with this Rosette. I am not sure it it's bad data or whether I need better processing techniques. I took this in Bortle 8-9 using an Optolong L-Extreme. There is quite a bit of noise/gradient I assume from either the significant amount of light pollution or the poor seeing conditions. I tried processing in Gimp and Pixinsight and get similar results. 

https://astrob.in/n9emzl/0/
gmadkat avatar
gmadkat avatar
How much data did you collect for this image and also what is the length of each exposure? Did you use darks and flats?
Well Written Engaging
John P avatar
John P avatar
It's about 60' total (20x180"). No flats and only about 15" of Darks.
gmadkat avatar
gmadkat avatar
I think 60 mins that might be too less for Bortle 8 or 9. I am imaging from Bortle 6 and 7 and needed at least 10 hours or so to get any details or depth in my Rosette. Flats would help too.
John P avatar
John P avatar
Thank you for the feedback!
gmadkat avatar
gmadkat avatar
You are welcome!
gmadkat avatar
gmadkat avatar
Here is a copy of my Rosette using the exact same filter below (LExtreme Pro) and an ASI533MC-Pro and about 2 hours, so a lot more data will help!! 
Here is one I did with narrowband filters and 8 hours.. https://www.astrobin.com/19k83r/D/