Flying Bat and Squid - Sh2-129 and OU4 - Bicolor Narrowband (Nico Carver)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: B152 · B354 · Sh2-129 · VdB140

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Flying Bat and Squid - Sh2-129 and OU4 - Bicolor Narrowband

Link: https://www.nebulaphotos.com/sharpless/sh2-129/

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Flying Bat and Squid - Sh2-129 and OU4 - Bicolor Narrowband

Link: https://www.nebulaphotos.com/sharpless/sh2-129/

The most fun and the most frustrating astro-image I've made so far! This is my fourth attempt at narrowband imaging. My first 3 subjects were: Jellyfish, N. America, and Crescent. This one was a LOT harder! Many false starts and missteps both in acquisition and processing. I threw out HOURS of data that wasn’t up to par, and this is my 4th full revision of the processing. I am still not fully happy with it, but each revision had positives and negatives, and I think this is the best balance of those so far. The most fun thing about the making of this image was the data (that I kept) was all captured on my road trip to see the eclipse, so all the data was from fairly dark to very dark sites. It is **very** faint. I used a tone mapping process originally described by J-P Metsavainio, which is why the stars are completely white. Basically all the color data is in the tone maps (which are starless). I then recombined that with the a synthetic Lum made out of Ha and Oiii data combined to bring back in the detail and stars.

Original
B
Final
C

B

Description: Slight changes to colors that I think I like better.

Uploaded: ...

C

Description: More color tweaks... better? I think I've realized I am never going to get it looking exactly how I want without RGB data- I might try to gather some later this summer.

Uploaded: ...

Beginners AP
Northeast Imagers
ZWO ASI1600MM/QHY163M
Camera Lens Astrophotography

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Status	Advanced success
Started	...
Astrometry.net job	1716217
PixInsight job	NVB89KG4HEIO8EQ7XNIKFI1MQZHCA6OT
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	21h10m39s.60
RA (top/left)	21h25m22s.91
RA (top/right)	20h51m11s.85
RA (bottom/right)	20h57m38s.21
RA (bottom/left)	21h28m36s.73

Dec (center)	+60°05′41″.9
Dec (top/left)	+62°05′30″.5
Dec (top/right)	+61°18′55″.4
Dec (bottom/right)	+58°00′43″.7
Dec (bottom/left)	+58°42′36″.7

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Flying Bat and Squid - Sh2-129 and OU4 - Bicolor Narrowband

Flying Bat and Squid - Sh2-129 and OU4 - Bicolor Narrowband

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Flying Bat and Squid - Sh2-129 and OU4 - Bicolor Narrowband

Flying Bat and Squid - Sh2-129 and OU4 - Bicolor Narrowband

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