M33 (Tim Ellison)

Celestial hemisphere: Northern · Constellation: Triangulum (Tri) · Contains: 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

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M33

I waited quite a while for a chance to image M33, finally managing it on 6th December. I had hoped to improve on earlier attempts with this galaxy, and think I have done so. Better equipment setup and operation and a longer integration time have all helped I think. The diffuse "halo" (maybe not technically the right name for it, but I'm not sure what other word to use) surrounding the galaxy is showing up quite well. That hadn't been visible in my earlier attempts.

I worked hard to get the focus as precise as possible, and feel fairly sure I was successful in that, but the stars haven't turned out looking as sharp as I had hoped. I wonder if the slightly wobbly guiding might have contributed to that. Maybe I could blame the sky for not being all that "sharp" on the night too. But whatever the cause, it looks like some experiments with star sharpening in processing might be useful.

GAS Astrophotography Interest Group

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Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
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.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	5338881
PixInsight job	VVB29REZVVZ3P1E6SHL578Y9OO81YMSM
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	01h33m55s.460
RA (top/left)	01h32m08s.325
RA (top/right)	01h32m15s.950
RA (bottom/right)	01h35m41s.465
RA (bottom/left)	01h35m36s.319

Dec (center)	+30°39′46″.15
Dec (top/left)	+31°14′32″.66
Dec (top/right)	+30°04′04″.23
Dec (bottom/right)	+30°04′54″.31
Dec (bottom/left)	+31°15′26″.94

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M33

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M33

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