Is this worth persuing ?

[Davey-T]

Have spent a couple of hours trying to image NGC7479/ Caldwell 44 but it's a bit low in my LP sky above hot rooftops.

Unfotunately my Atik 314L will only cool down to about -6 on these hot summer nights and I'm wondering if you think it's worth continuing

given results so far (see attached).

It looks a nice target but as my library of calibration frames are done at -10 I would need to do new ones at -6 just for this .

Image is two hours with 10" SCT + 6.3 f/r, LRGB just some levels and curves adjustments no calibration hence donuts.

Does anyone think more subs and calibration will improve it ?

Dave

[Earl]

Calibration will make a massive difference, might be worth making a set of darks just for it.

[Stephen]

I don't use darks with my 314L EVER, even at these balmy temps (-6 just like you.)

Flats will obviously sort out the donuts, but do you maybe just need an LP filter to clear up those gradients?

See my gallery for the last two images I got (both at -6)