HCG 35 (And others)

[DaveS]

I've finally brought this to some kind of a conclusion (For now LOL).

Between the 7th Jan and 5th Mar I captured:

54 600 sec Luminance subs at Bin1, of which 49 made it into the stack

20 each RGB 600 sec subs at Bin 2 using Baader Bessel filters, of which 16 B, 19 V, and 19 R made it through QC

With the ODK 12 and ASI 533 for a totally bonkers 0.38"/px native and nominal 19' square.

Stacked and Gradient Reduction in AstroArt 8 and initial work-up in PI with SPCC on the RGB stack, then BlurX on Luminance at 85% non-stellar with 25% star reduction, and NoiseX, BlurX at 50% on the RGB and again ArcSinH stretch and NoiseX. The Luminance was given DDP stretch in AstroArt 8 (I found it better than ASH for this job). The stretched RGB was given a slight Histo Stretch to bring it into the AA range.

Finally LRGB synthesis was done in AstroArt. Saved as FITS and PNG

C&C welcome as usual, I think the saturation may be too high, though it as it came out of SPCC and ArcSinH.