M33!

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

M33!

Post by Dunmunro » 17 Jan 2026, 01:42

M33, Jan 13.

10in SCT at F5 via a Starizona LF SCT reducer, ASI071 MC Pro camera,45 x 5min ( 3hrs 45min) subs on a CEM60 mount. All aspects of image acquisition, centring, autofocus and OAG autoguiding, starting with the mount parked, was robotically controlled by Astroart-9 SP3. All processing with AA9 SP3. The RGB flares off the brighter stars are due to an defect in the OTA...

Processing history (from the fits header):
07) Multiscale Lowpass 29 19 9 90
06) Flip horizontal
05) Local histogram equalization 10 2 80 0
04) White balance 4 -1 -1 -1 2 -1 -1 -1
03) DDP 90 15 0 50 50 1.37 40
02) Histogram stretch 65535 2254 17157 -2 0
01) Deconvolution Richardson Lucy 15 2 95 40
(sigma sum stacking plus flats and darks)

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