Over the last couple of nights I have tried imaging the Helix Nebula NGC7293 with poor results.
Only using a Tak 76mm so 3" or so scope on a AZEQ6 mount and a QHY163C OSC camera and a IR/UV filter. Also tried a UHC-S filter.
I did manage to coax an image out but needed extreme stretching to see it.
I am only using about 30sec max exposure (actually 22 last night ) at around 150 gain tried higher but seemed more noisy.
Capturing in Sharpcap Pro so I can see a live stack and also save the images for later processing. Stacked for about 20minutes
Larger aperture or more sensitive camera ? Longer exposure a problem as I can't see the south celestial pole to accurate polar align due to a tree.
My image is here
https://telescopius.com/pictures/vie...ebula/by-cliff
No flats or darks in this.
Also seemed i got no colour I used Siril for stacking and Startools to process.
Moon light could also be a factor. Bortel zone suppose to be 6 I think higher.
Appreciate any help, imaging from my Villa in Picnic Point Sydney a real problem!
I have a bit more sky as a large tree was just cut down but still can't see a lot.
Cliff