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NGC 281 in HOO-[RGB]

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#1 Pete_xl

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Posted 14 December 2019 - 04:16 AM

We have ugly weather here and so I took ca. 50 minutes of OIII and the same amount of RGB I could catch in a cloud hole last Thursday and added the Ha I already had to tinker an HOO plus RGB stars from it. The moon was bright and the integration time very short but I followed the principle of better having one bird in the hand than two in the bush.

 

So here is the image made from

 

27 x 200s Ha
16 x 200s OIII
36 x 30s red
36 x 30 s green
34 x 30 s blue

 

imaged with my ASI1600mmp attached to the TS Photoline 130/910 mm apo.

 

49216926027_bf341e961c_b.jpg

 

More on astrobin:

get.jpg?insecure

 

I made a crop of the central part:

 

49216216343_c8e9d85679_b.jpg

 

Astrobin:

 

 

get.jpg?insecure

 

In the end the most work was to decide for the colors and brightness to use for the final image. I'd have liked to make it more "red" but that would have forced me to rule down the brightness at the expense of giving up some of the nice contrast and detail in the globules and dust structures.

 

I'd like to hear your C&C :-)

 

Pete

 

 

 

 


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#2 GiorgioF

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Posted 14 December 2019 - 06:04 AM

I got the notification I'm AB in real time and went back to this image few times, switching between the Ha and the colour version. Simply amazing. First question is what is your bortle sky. Because a so nice data in a so short time is almost impossible for me (city sky).it is detailed and "fluffy". Like cotton candy cloud. The 3D effect make the image jump out the monitor.

#3 Pete_xl

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Posted 14 December 2019 - 09:03 AM

I got the notification I'm AB in real time and went back to this image few times, switching between the Ha and the colour version. Simply amazing. First question is what is your bortle sky. Because a so nice data in a so short time is almost impossible for me (city sky).it is detailed and "fluffy". Like cotton candy cloud. The 3D effect make the image jump out the monitor.

Thanks Giorgio, glad you like it! I live in a small city on the countryside between two bigger ones. My skies should be between bortle 4 and 5 I imagine. The color code for this region in the LP maps is yellow.



#4 Pete_xl

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Posted 14 December 2019 - 09:07 AM

I made another version as an H-RGB using the RGB data for the colors and stars and the Ha for the background luminance:

 

49217481481_833941b8b7_b.jpg

 

Astrobin:

get.jpg?insecure

 

49216998108_884ddd68e9_b.jpg

 

get.jpg?insecure

 

27 x 200s Ha

36 x R, 36 x G, 34 x B (each 30s)

 

Cheers

Pete


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#5 j.gardavsky

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Posted 14 December 2019 - 09:39 AM

Hello Peter,

 

this is a fantastic capture of the dark nebular details, and of the pillars of "something" in the Pacman.

The second version with the H-Alpha light is absolutely top!

 

Thank you for sharing,

JG



#6 Pete_xl

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Posted 15 December 2019 - 04:02 AM

Hello Peter,

 

this is a fantastic capture of the dark nebular details, and of the pillars of "something" in the Pacman.

The second version with the H-Alpha light is absolutely top!

 

Thank you for sharing,

JG

Hello Jiri,

 

I really appreciate you nice comment! Also in my opinion the image that uses only Ha for luminance and RGB for the colors is better. The addition of the OIII that has less information and is less structured eats up a lot of information when it is combined with the other channels.

 

Cheers

Pete


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#7 j.gardavsky

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Posted 15 December 2019 - 06:15 AM

Thank you Peter!

 

That's why we visual people prefer the H-Beta filter on the Pacman, contrary to what the educating texts are writing.

Moreover, reminding your astrophotos so far I have seen them, the catalog of the dark nebulae should be rewritten. There are many more dark nebulae, than those of Lynd.

 

Best,

Jiri



#8 Mert

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Posted 15 December 2019 - 07:04 AM

Wow, you really made wonderful image with magical colors. The blue centerpart imho makes it look 3D. The second version looks more natural. Thanks for sharing!
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#9 elmiko

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Posted 15 December 2019 - 09:58 AM

Again, another fantastic image Pete! Your processing is top notch!



#10 gunny01

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Posted 15 December 2019 - 11:04 AM

Wow, you really made wonderful image with magical colors. The blue centerpart imho makes it look 3D. The second version looks more natural. Thanks for sharing!

++.  You should be doing instructional videos Pete. Neon like colors.



#11 PhotonHunter1

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Posted 15 December 2019 - 01:40 PM

Outstanding image! I especially love the HOO image and the center region - the faint delicate wisps of nebulosity and the coloring. Just fabulous!


Edited by PhotonHunter1, 15 December 2019 - 01:41 PM.



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