Hercules Galaxy Cluster (Wayne H)

Celestial hemisphere: Northern · Constellation: Hercules (Her) · Contains: HD144149 · HD144622 · IC 1170 · IC 1172 · IC 1173 · IC 1176 · IC 1178 · IC 1179 · IC 1181 · IC 1182 · IC 1183 · IC 1184 · IC 1185 · IC 1189 · IC 1190 · IC 1191 · IC 1192 · IC 1193 · IC 1194 · NGC 6039 · NGC 6040 · NGC 6041 · NGC 6042 · NGC 6043 · NGC 6044 · NGC 6045 · NGC 6047 · NGC 6050 · NGC 6054 · NGC 6055 · And 3 more.

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Hercules Galaxy Cluster

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Hercules Galaxy Cluster

First real project with my ASI6200MM Pro and modified workflow. Image was taken over three nights in north Seattle, Bortle 7-8. Acquired with NINA using short 1-minute RGB subs to try to mitigate effects of light pollution., a total of 544 subs after blinking, just over 9 hours. Seeing was pretty good, but hazy. We're already getting whiffs of smoke from our neighbors to the north.

I've been experimenting with my workflow incorporating the new "X" tools - GraXpert, BlurXterminator and NoiseXterminator. Briefly, I used Astro Pixel Processor from calibration through stacking and color combine. APP handles the large number of subs very efficiently (takes advantage of my 24-core Ryzen computer). Exported linear FITS file to GraXpert for background normailization and light pollution correction. Was very pleased with the results at default settings. I can get pretty good results from APP but it takes a while.

Back into APP for color calibration, saturation and stretching - I'm not really competent enough in doing this in PI. :-) Saved as 16-bit TIFF and loaded into Pixinsight for application of NoiseXterminator. Very satisfied with the results at near-default settings. I cropped the image from 2.4 degrees x 1.6 degrees to 1 degree x 0.7 degrees to focus on the cluster.

Took the cropped image into Photoshop and tweaked with their Camera Raw tools to slightly darken background and minor sharpening.

Definitely fun to scroll around the full-scale image and see all the tiny galaxies and interacting galaxies

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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	7745142
PixInsight job	DCNRDOVB38AHW9ZKLFFGLWF0FS1VYH2J
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	16h05m33s.864
RA (top/left)	16h04m37s.689
RA (top/right)	16h08m07s.559
RA (bottom/right)	16h06m30s.427
RA (bottom/left)	16h02m59s.999

Dec (center)	+17°53′19″.42
Dec (top/left)	+17°18′59″.99
Dec (top/right)	+17°49′11″.21
Dec (bottom/right)	+18°27′39″.61
Dec (bottom/left)	+17°57′21″.41

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Hercules Galaxy Cluster

Hercules Galaxy Cluster

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Image Index:

Contribution Index (beta):

Hercules Galaxy Cluster

Hercules Galaxy Cluster

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