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M27, 40.6 hours of LRGB and HOO

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#1 riot1013

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Posted 30 June 2020 - 07:43 PM

M27, The Dumbbell Nebula, imaged over a span of two summers using two different scopes, my Explore Scientific ED127 FCD-100 last summer and my Tele Vue NP101is this spring. I initially planned something like a 64 hour project with the Tele Vue but the weather just didn't cooperate and I am ready to move on to something new.

Overall I love this image but the processing was a massive challenge due to the center of the nebula being so much brighter than everything else; very much an exercise in patience.

 

Overall this image is 40.6 hours of integration with a ZWO ASI1600mm Pro using a combination of Astronmik and ZWO filters.

 

Mounts used were an Explore Scientific G11 PMC-8 and a SB Paramount MyT.

 

As always critiques and comments are more than welcome.

 

https://www.astrobin.com/wa6x88/B/

 
DUMBBELL LRGBHOO 2432 MIN 30 SEC

 

 


Edited by riot1013, 01 July 2020 - 06:01 PM.

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#2 sunnyday

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Posted 30 June 2020 - 08:48 PM

very nice shot , thanks .



#3 riot1013

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Posted 30 June 2020 - 10:28 PM

very nice shot , thanks .

Thank you!


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#4 riot1013

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Posted 01 July 2020 - 06:03 PM

Updated with a new revised image.  I played with the star saturation a little and like this image better.



#5 colinrm

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Posted Yesterday, 07:45 AM

That is absolutely amazing!  I can't believe how crisp and detailed it is!

 

I'm currently working on around 28 hours on the Crescent.  Wonder if I should go longer?  :)



#6 the Elf

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Posted Yesterday, 09:03 AM

The amount of detail is absolutely stunning. The color is a bit too saturated for me but this is a question of personal preference. You might invest 2 hours in RGB and add colored stars. Also a question of personal preference. Alas the stars in that region are behind some dust and appear mostly brownish:

http://www.elf-of-lo...mbbell2019.html

 

@colinrm: the question is how many hours you spend on which channel. While Ha and O-III are both bright in the dumbbell the crescent is weak in O-III. I'd take a few hours of Ha and O-III and then check which of the two needs more. If you go very deep the moon might affect the faintest data, depending on what bandwidth you have. Under the full moon a long exposure might not show more than a shorter one without moon. In your gallery it seems like you do not shoot NB. Do you? For color there is no point investing so much time. You will never get the faint stuff out of the background.


Edited by the Elf, Yesterday, 09:06 AM.

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#7 Seven007

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Posted Yesterday, 10:50 AM

The details are awesome!
What is your next Project?
Looking forward to it.

#8 lakeorion

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Posted Yesterday, 06:21 PM

That's a reference image.



#9 JamesTX

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Posted Yesterday, 09:34 PM

Fantastic, the detail inside M27 is great.

 

What method did you use to combine the RGB data with the NB?

 

Never mind, I see your comments on astrobin, you used the nbrgb combination script in pi.  :)


Edited by JamesTX, Yesterday, 09:36 PM.



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