NGC 3735 / Arp 329

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Dunmunro
Posts: 326
Joined: 10 Jan 2019, 01:11

NGC 3735 / Arp 329

Post by Dunmunro » 17 Jan 2026, 15:50

NGC 3735 (lower left) / Arp 329 (galaxy chain, upper right) from last night.

10in SCT at F8 via a Starizona LF SCT reducer, ASI071 MC Pro camera, 67 x 5min ( 5hrs 35min ) subs on a CEM120 mount. All aspects of image acquisition, centring, autofocus and autoguiding, starting with the mount parked, was robotically controlled by Astroart-9 SP3. All processing with AA9 SP3. I started imaging in the with the target fairly low which created a gradient which I corrected, mostly, with a mild gradient filter.


Processing History:
08:28:36 Flip horizontal
08:27:46 White balance 4 -1 -1 -1 2 -1 -1 -1
08:27:37 Remove gradient adaptive sub. 95
08:17:10 DDP 85 10 0 30 50 1.37 40
08:14:08 Histogram stretch 65535 5448 19952 -1 0
08:11:21 Deconvolution Richardson Lucy 15 2 85 45
(sigma sum stacking and flats and darks)

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