#Rosette nebula

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safe narwhal
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I need help processing my stack of the rosette nebula, about 4 hours at gain 5000, bortle 7.
Seeing was particularly bad that imaging session and I may be slightly out of focus but any help is appreciated.
Here is the link to the stack:

https://we.tl/t-OhH2r8DZSL

Thanks

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This is my image, the blue channel is wild, much stronger than anything else I have imagined in terms of stars

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Probably focus problem

winter pasture