M13 In Hercules (Pat Rodgers)

Celestial hemisphere: Northern · Constellation: Hercules (Her) · Contains: Great Cluster in Hercules · Hercules globular cluster · M 13 · NGC 6205

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M13 In Hercules

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M13 In Hercules

Collected some 60s RGB to add to the 180s RGB from late March. Reprocessed in Pixinsight using the HDRcombine script to blend to 2 different sub lengths.

Rev B: Saw a post by Paddy Gilliland about how he blends his Luminance into globulars and realised I'd been doing it wrong in Pixinsight. So reprocessed this image. This time using the LRGB channel combine process as opposed to a saved process for galaxies I have. This allowed me to add the luminance at 50% which brought some outer details to life and lifted the core a touch without saturating it.

I also used the masked stretch process instead of manually going from linear to non linear. This kept a lot more details from the HDR combine procedure.

Thanks Paddy.

Rev C: Re-processed as I forgot to set the BG on the masked stretch. BG looks a tad better now.

Rev D: Another go at this BG again a touch better.

Original
B
C
Final
D

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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	1148203
PixInsight job	WDMPMBU15DZVRIONTWX9HFWTGBHZNNHM
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	16h41m41s.36
RA (top/left)	16h42m28s.48
RA (top/right)	16h40m17s.79
RA (bottom/right)	16h40m54s.20
RA (bottom/left)	16h43m05s.60

Dec (center)	+36°27′34″.9
Dec (top/left)	+36°12′51″.10
Dec (top/right)	+36°22′46″.9
Dec (bottom/right)	+36°42′14″.6
Dec (bottom/left)	+36°32′18″.3

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M13 In Hercules

M13 In Hercules

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M13 In Hercules

M13 In Hercules

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