Hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  IC 5134  ·  NGC 7129  ·  NGC 7133  ·  VdB146
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NGC 7129 (HaLRGB), 



    
        

            Linda
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Getting plate-solving status, please wait...
NGC 7129 (HaLRGB), 



    
        

            Linda
Powered byPixInsight

Acquisition details

Dates:
Sept. 5, 2021 ·  Sept. 6, 2021 ·  Sept. 7, 2021 ·  Sept. 8, 2021 ·  Sept. 9, 2021 ·  Sept. 10, 2021 ·  Sept. 11, 2021
Frames:
Astrodon Gen2 I-Series Tru-Balance Blue: 23×600(3h 50′) -25°C bin 2×2
Astrodon Gen2 I-Series Tru-Balance Green: 24×600(4h) -25°C bin 2×2
Astrodon Gen2 I-Series Tru-Balance Lum: 45×900(11h 15′) -25°C bin 1×1
Astrodon Gen2 I-Series Tru-Balance Red: 26×600(4h 20′) -25°C bin 2×2
Astrodon H-alpha 5nm: 22×900(5h 30′) -25°C bin 1×1
Integration:
28h 55′
Darks:
50
Flats:
15
Bias:
150
Avg. Moon age:
10.02 days
Avg. Moon phase:
7.56%

RA center: 21h42m56s.644

DEC center: +66°0701.21

Pixel scale: 0.728 arcsec/pixel

Orientation: 91.037 degrees (flipped)

Field radius: 0.437 degrees

More info:Open 

Resolution: 3312x2780

File size: 1.2 MB

Data source: Own remote observatory

Remote source: Sierra Remote Observatories

Description

NGC 7129 has a lot going on. While the NGC 7219 refers only to the reflection nebula there is also nearby dust and h-alpha emission. It's a happening bit of sky and with gobs of stars cluttering up the place. As a result, it was challenging to process and I'm not 100% happy with this result but I've been looking at it long enough that it's time to take a break from it for now. I may revisit the data with a fresh eye sometime in the future.

Here's how I processed it:

L:
dynamic crop
deconvolution
ABE
MLT noise reduction
histogram transformation

H-a:
dynamic crop
MLT noise reduction
histogram transformation

R, G and B:
dynamic crop
ABE
MLT noise reduction

RGB:
channel combination
background neutralization
color calibration (PCC refused to plate solve the image though the coordinates were correct)
histogram transformation
LRGBCombination
NRGBCombination to add in h-a
EZ Star reduction script 
LHE (2 scales)
curves (contrast)
Adv Sharpening script

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