M51 - Whirlpool Galaxy (Doug Gray)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: IC 4263 · IC 4278 · M 51 · NGC 5169 · NGC 5173 · NGC 5194 · NGC 5195 · NGC 5198 · Whirlpool Galaxy

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M51 - Whirlpool Galaxy

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M51 - Whirlpool Galaxy

This was one of the few times I've tried using the unlocked bin1 settings on the ASI294MM. Each time I try, I'm reminded of what a hassle it is to deal with such large files. I had to delete a ton of files just to make room to copy in the raw lights, then delete the intermediate files in between stacking some of the channels. The end result though, was marvelous and exceeded my expectation of what I could get with this focal length. I'm also grateful that someone commented on the color shift of my last photo, since it lead me to explore more of the post-processing tools that Siril has, such as compositing and photometric color correction. In addition to reducing the guess work in color tuning, I think it has shaved an hour off the time I would normally spend merging color channels in photoshop.

Please note: The following tables are updated every 24 hours.

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	4485589
PixInsight job	XUFMVHHOE2TT9LEWVZQ2EPIPF6NTWCSK
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	13h29m52s.33
RA (top/left)	13h25m06s.14
RA (top/right)	13h26m37s.78
RA (bottom/right)	13h34m29s.43
RA (bottom/left)	13h33m15s.61

Dec (center)	+47°11′53″.0
Dec (top/left)	+48°06′54″.9
Dec (top/right)	+46°06′50″.9
Dec (bottom/right)	+46°16′11″.4
Dec (bottom/left)	+48°16′36″.5

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M51 - Whirlpool Galaxy

M51 - Whirlpool Galaxy

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M51 - Whirlpool Galaxy

M51 - Whirlpool Galaxy

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