Quote:
Originally Posted by DiscoDuck
I redid the version on Astrobin with the background done as Allan suggested and the centre of the galaxy redone with only the best subs (as Colin suggested) to give more detail.
I still think it's not very good data/bad processing ... but better than it was.
I think in future I might try longer subs as it seems that the fixed pattern noise and/or the fixed (ie was random but now frozen) noise of the master dark (which is only about 300 subs i.e. 5 hours) presents a baseline you can't stack better than, of course. Hence increasing the signal via longer exposures might work. Another experiment to try 
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Hi Paul,
yes as per your latest version:
https://www.astrobin.com/full/wvjbti/J/
you certainly got rid of most of that blotchy noise.
It's looking a lot better.
It might not be possible to get such faint galaxy arms showing well
from a light polluted location.
We all need to have our telescopes on a dark mountain in Chile
http://www.chart32.de/index.php/recent
cheers
Allan