Messier 15 with IFN and HA (Antoine Grelin)

Celestial hemisphere: Northern · Constellation: Pegasus (Peg) · Contains: HD204234 · HD204417 · HD204509 · HD204571 · HD204712 · HD204844 · HD204862 · HD205061 · HD205127 · HD205354 · M 15 · NGC 7068 · NGC 7078 · PK065-27.1

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Messier 15 with IFN and HA

Link: https://www.galactic-hunter.com/post/messier-15

Powered byPixInsight

Messier 15 with IFN and HA

Link: https://www.galactic-hunter.com/post/messier-15

I added M15 to my imaging sequence as a gap-filler between two galaxies. Despite knowing that this was one of the best globular clusters to observe visually, I didn't expect much from it photography-wise, so only imaged it for a total of three hours doing 30-second exposures.

While processing the data, I noticed some faint IFN in the shape of an "L", and immediately went to check Astrobin to see if it was captured before. The answer was yes, it had been captured a few times, and that excited me to spend more time on the cluster. I accidentally trashed the three hours of data I already had on it while making space on my hard drive, and just decided to start from scratch doing 5-minute exposures. My hope was to not only reveal all of the IFN, but also get more from the background. I was not disappointed while processing the data after 14 hours on it!

Be sure to read the full blog post to learn more about all the IFN, and the other gasses present in the image: https://www.galactic-hunter.com/post/messier-15

I also made a video here: https://www.youtube.com/watch?v=QuvGyHnP8n8&ab_channel=GalacticHunter

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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.
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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	8640510
PixInsight job	0EDOQ9NOODWMH23090RM8H75OF43IIYS
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h29m58s.49
RA (top/left)	21h30m41s.70
RA (top/right)	21h37m17s.24
RA (bottom/right)	21h29m14s.84
RA (bottom/left)	21h22m42s.42

Dec (center)	+12°09′08″.7
Dec (top/left)	+10°08′52″.2
Dec (top/right)	+13°04′51″.1
Dec (bottom/right)	+14°09′21″.1
Dec (bottom/left)	+11°12′33″.8

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Messier 15 with IFN and HA

Messier 15 with IFN and HA

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Messier 15 with IFN and HA

Messier 15 with IFN and HA

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