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It looks wonderful but you do have slightly oval stars so it seems you may benefit from shorter exposures or to cull any poor subs from your current data.
I still do only 30 second subs as not one of my rigs has it's auto guide running yet ( 3 all up) but by virtue of doing so much 30 second stuff now doubt that in the future I will go longer..the reason is I now notice how fast seeing fluctuates and you get maybe one good sub then two crook ones.not guiding just sky moves I guess...so you throw out two and have one good one..now if that was one 90 second sub you probably would not notice it was a ,little off...so the weird thing I find is the more I throw out invariably the better the final image.
Anyways the fact is your current image is really nice and I honestly am not critising it in the least but told the story hoping it may help in the future.
Really well done.
Alex
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