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The Cygnus Wall - NGC 7000

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#1 Epox75

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Posted 26 May 2020 - 11:56 PM

The second image of my exhumed TS/GSO 6'' newtonian. I am very happy with the result, it's the payoff of a lot of frustrating nights of trial and error spent trying to get a hand of the scope. 

 

These are just a bit less than 11 hours of integration in the Hubble Palette version and a bit less than 8 hours for the Bicolor version, taken with the ASI1600MM-Cool at 200 gain 50 offset ( 146x120s Ha - 90x120s OIII - 90x120s SII )

 

Link to the Hubble Palette full res image and technical card on Telescopius: https://telescopius....a-alessandrelli

 

Flickr link: https://flic.kr/p/2j62BKq

 

Link to the Bicolor full res image and technical card on Telescopius: https://telescopius....a-alessandrelli

 

Flickr link: https://flic.kr/p/2j5LntN

 

Preview of the SHO version:

 

Cygnus Wall - NGC7000 - SHO - 1280x960 - 3.jpg

 

Preview of the Bicolor Version: 

 

Cygnus Wall - NGC7000 - HOO - resampled.jpg

 

 

C&C are welcome!

 

Clear Skies, 

 

Andrea 
 


Edited by Epox75, 27 May 2020 - 08:19 PM.

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#2 james7ca

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Posted 27 May 2020 - 01:44 AM

Both images are nice but I think I prefer the bicolor over the SHO.



#3 Epox75

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Posted 27 May 2020 - 05:57 AM

Both images are nice but I think I prefer the bicolor over the SHO.

Thanks for your comment! My preference for the SHO is a mere matter of colors. I understand that is a better to see the hydrogen nebula details instead of the Oxygen that covers them, but it's also very interesting. Not many images of the Cygnus Wall show that clearly and if you look a the full res image you can actually still see part of hydrogen details behind the Oxygen (and Sulfur?) layer which I think is very cool.   
I usually don't use Ha as luminance on Hubble Palette images but maybe on this one I should in order to make a version with a more "standard" look



#4 Epox75

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Posted 27 May 2020 - 03:27 PM

I reprocessed the image and edited my first post. I reduced the OIII luminance and applied less saturation and hue. I applied also less deconvolution because some stars were heavily affected. 



#5 Epox75

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Posted 27 May 2020 - 08:24 PM

Second and last update: I reprocessed the bicolor version with the extra Ha data I collected the last night and I added its preview and the updated links to the original post. Now I think I like the bicolor version more :)


Edited by Epox75, 27 May 2020 - 08:25 PM.


#6 sunnyday

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Posted 27 May 2020 - 08:29 PM

very pretty, with very nice details and the colors are very alive.
moreover, I don't know this region.
well done and thank you.


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#7 vakulenko_sergiy

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Posted 28 May 2020 - 06:02 PM

Nice colors on bicolor version! I personally prefer it over SHO.


Edited by vakulenko_sergiy, 28 May 2020 - 06:02 PM.

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#8 AhBok

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Posted 28 May 2020 - 06:37 PM

Interesting. I much prefer the SHO esthetically and at least on my monitor, slightly more detail. Both are nice, though!
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#9 Epox75

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Posted 29 May 2020 - 08:45 AM

very pretty, with very nice details and the colors are very alive.
moreover, I don't know this region.
well done and thank you.

Thank you!

 

Nice colors on bicolor version! I personally prefer it over SHO.

 

Interesting. I much prefer the SHO esthetically and at least on my monitor, slightly more detail. Both are nice, though!

Thank you! I preferred the SHO until I reprocessed the bicolor version with the extra data I collected during the last session on this object, after that I changed my mind :) The SHO looks more detailed probably because the SII signal is quite strong in this part of NGC 7000 


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