M33, 6 hours LRGBHa, December 2023 (Michael Rex)

Celestial hemisphere: Northern · Constellation: Triangulum (Tri) · Contains: HD9269 · HD9483 · HD9686 · IC 131 · IC 132 · IC 133 · IC 135 · IC 136 · IC 137 · IC 142 · IC 143 · M 33 · NGC 588 · NGC 592 · NGC 595 · NGC 598 · NGC 604 · Triangulum Galaxy · Triangulum Pinwheel

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M33, 6 hours LRGBHa, December 2023

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M33, 6 hours LRGBHa, December 2023

My second attempt at this target, and first return to it since using a 90mm acro refractor with stock DSLR three years ago when I first (semi seriously) started astrophotography. That was an abomination, of course.

The first night of this data was only meant as a test for a couple mirror modifications to my secondary and primary. I still need to dial in my backspacing and tilt. But it seemed promising enough that I added a second night.

Processing has been somewhat confounding. A lot of dynamic range and features to try to reveal here, along with getting close to a 'proper' color balance. At fairly short total integration, I also haven't been super happy with the lower-SNR transition from target to background, i.e. the outer fringes. But this edit I think is the best compromise so far.

Stacked in WBPP, processed in StarTools 1.9 beta.

StarTools

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	Distinct awarded users	Total awarded images
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This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
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Deep sky
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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Other
Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Status	Advanced success
Started	...
Astrometry.net job	8920236
PixInsight job	TF1LOTRA1HA1S592NRDN9WJF1RONVTX0
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	01h33m53s.77
RA (top/left)	01h37m19s.63
RA (top/right)	01h37m24s.37
RA (bottom/right)	01h30m22s.96
RA (bottom/left)	01h30m27s.93

Dec (center)	+30°39′44″.1
Dec (top/left)	+29°32′36″.8
Dec (top/right)	+31°46′32″.4
Dec (bottom/right)	+31°46′33″.7
Dec (bottom/left)	+29°32′35″.9

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M33, 6 hours LRGBHa, December 2023

M33, 6 hours LRGBHa, December 2023

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M33, 6 hours LRGBHa, December 2023

M33, 6 hours LRGBHa, December 2023

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