NGC281 - Pacman Nebula (Ben)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: IC 1590 · NGC 281

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NGC281 - Pacman Nebula

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NGC281 - Pacman Nebula

First light at a dark site! subs taken on the first night were discarded due to Hotech flattener loosing compression during temperature swing (auto-flattener was not auto-flattening). Resolved and shot on the even better second night. Amazing being at a dark site. Would love to get back soon and get more data.

Pre-Processing:
Standard alignment with Auto Adaptive Weighted Average Stacking on best Ha frame with 2x Drizzle
Post-Processing:
Deconvolution on Ha (EZ decon)
Denoise on Ha x3 (Ez denoise)
Denoise on Oiii x3 (Ez denoise)
Stretch (EZ softstretch)
RGB combination with pixel math:
R = Ha
G = ((Oiii*Ha)^~(Oiii*Ha))*Ha + ~((Oiii*Ha)^~(Oiii*Ha))*Oiii
B = Oiii
RGB Starnet++ star removal
RGB Color mask based curves transformation
Range selection for background gradient and color removal
RGB star replacement
RGB convolution
Ha Starnet++ star removal
Ha masked sharpening with high and low standard deviation
Ha Dark Structure enhancement script
Ha ACDNR
Ha star replacement
L combination

FWHM of stacked Ha: 3.55
FWHM of stacked Oiii: 3.43

Need to start analyzing FWHM and improving this. I think setting to improve this number should greatly increase final image resolution!

Original
Final
B

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	Image of the day	Top pick	Top pick nominations	Total submitted
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	Image of the day	Top pick	Top pick nominations	Total submitted
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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.
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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	Basic success
Started	...
Astrometry.net job	5132431
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC281 - Pacman Nebula

NGC281 - Pacman Nebula

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NGC281 - Pacman Nebula

NGC281 - Pacman Nebula

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