M33 thin data rework

[DaveS]

This is old data, pretty much "First Light" with the ODK / G3 setup. Just 1 hour each RGB and 2 hours L, all Bin 1. My first processing was so rubbish that I didn't bother getting any more data, plus I was fighting a series of borks, plus the weather was against me (Even more than normal as I recall).

This is the first version that had me running screaming for the hills.

After getting some better (Though still not perfect) calibration frames, and applying better techniques with the new tools in AA8, I managed to produce this.

Still not brilliant, but it makes revisiting M33 if the weather cooperates this autumn an attractive proposition.

 

[vlaiv]

Improvement is visible but it is still over sampled.

Have you considered doing software binning on that data? It will let you manage it better as SNR will be higher.

[DaveS]

Yes, it's way oversampled. Part of my tentative plans will be to capture the RGB at bin 2 and with G2v calibration (Rough, first order only). I think I will still get the Luminance at bin 1 on the off chance that there is any resolution below 1.2".

I did try software binning but it produced some crazy gradients.

TBH, the data is so rubbish that I don't want to spend too long in re-working it, but may have another look at soft binning.

[Rodd]

Thd second version looks pretty darned good.  If you add more data the calibration artifacts will recede.  Binning will help with SNR. I have grown reliant on binning

[DaveS]

Thanks Rodd.

Better calibration frames are also on my to-do list.

I tried soft binning my RGB data but it looked worse.