North America and Pelican Nebulae (galactic_surfer)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: 50 Cyg) · 50 alf Cyg · 55 Cyg · 56 Cyg · 57 Cyg · 58 Cyg · 58 nu. Cyg · 62 Cyg · 62 ksi Cyg · Arided · Aridif · Arrioph (α Cyg · B349 · B350 · B351 · B352 · B353 · B355 · B358 · Deneb · HD197291 · HD197374 · HD197391 · HD197488 · HD197621 · HD197678 · HD197961 · HD198151 · HD198164 · HD198212 · And 119 more.

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North America and Pelican Nebulae

Powered byPixInsight

North America and Pelican Nebulae

My first post! This was a "quick and dirty" narrowband session, and I plan on adding more data down the road.

The RedCat 71 f/4.9 APO is a fun scope that works great for capturing large targets. I tend to use it with a smaller APS-C one shot color camera but in this case I was experimenting with a full-frame setup (from my longer FL scopes), aiming for a larger chunk of the sky, fitting in NGC 7000, IC 5070, and then some! The under-sampling was countered by drizzling the data during processing. I did not calibrate with any dark frames.

I dove head first into astrophotography about a year ago. While I continue my journey with PixInsight, I've been re-learning Photoshop, a tool I've used on and off for a couple decades in other non-astro projects. I've been mostly following the techniques in Charles Bracken's "The Deep-Sky Imaging Primer." For this image, I applied the following:

PixInsight:
1. Weighted Batch Preprocessing script
2. Drizzle Integration (I dither every other frame in NINA)
3. Dynamic Crop to remove artifacts near image borders
4. Automatic Background Extractor
5. Linear Fit (against Ha image)
6. Morphological Transformation on the OIII image to reduce star size. This channel displayed much higher FWHM.
7. STF / Histogram Transformation on all 3 images
8. Color synthesis using SHO-AIP script
9. Exported as 16-bit TIFF

Photoshop:
10. Removed noise using the Topaz DeNoise AI plugin
11. Tweaked contrast and levels
12. Exported image as a smaller sized JPEG

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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Amateur hosting facility
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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	5901873
PixInsight job	DI4W5TX04TBTSB6CTVGW49UZDQ1RBBGE
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h55m10s.16
RA (top/left)	21h13m49s.89
RA (top/right)	20h52m41s.37
RA (bottom/right)	20h35m52s.10
RA (bottom/left)	20h57m21s.48

Dec (center)	+43°57′23″.3
Dec (top/left)	+42°53′37″.1
Dec (top/right)	+47°28′58″.3
Dec (bottom/right)	+44°49′23″.7
Dec (bottom/left)	+40°25′35″.6

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North America and Pelican Nebulae

North America and Pelican Nebulae

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North America and Pelican Nebulae

North America and Pelican Nebulae

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