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  #1  
Old 23-06-2015, 03:17 PM
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Slawomir (Suavi)
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Ngc 6188

Work in progress...NGC 6188

So far only a bicolour image, 2hrs of Halpha and nearly 4 hours of OIII.

Would like to triple the amount of data and to also include SII, but that will have to wait for clear skies...

Full resolution version: http://www.astrobin.com/full/189183/0/

Thank you for looking.
S.
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Last edited by Slawomir; 23-06-2015 at 03:35 PM.
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  #2  
Old 23-06-2015, 03:38 PM
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rustigsmed (Russell)
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that is very very nice Slawomir,

excellent details, looking forward to more!
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  #3  
Old 23-06-2015, 03:45 PM
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It's looking pretty good right now Slawomir. I like the extension of OII bubbles from the O star. I got vague hints of those. I can clearly see them in your image. I look forward to your final result.
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  #4  
Old 23-06-2015, 04:12 PM
Placidus (Mike and Trish)
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Very fine indeed, Slawomir! Superb contrast on the most subtle features, without losing anything. In particular the [OIII] bubbles that Paul mentioned are indeed well handled.

Don't know that you need hugely more H-alpha or [OIII] - your image is already smooth and detailed. We found [SII] to be a challenge. There's not so very much in the area, and it would take a long hammering to bring it out.
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  #5  
Old 23-06-2015, 04:16 PM
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multiweb (Marc)
ze frogginator

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That's superb Slawomir!. You nailed it!
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  #6  
Old 23-06-2015, 04:32 PM
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strongmanmike (Michael)
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Excellent image of the fighting dragons Slaw Looking at this image it is not hard to see why it is a popular target this time of year .

I am working on a Bicolour image (of a different target) at the moment, should be finished tonight, although I am incorporating some RGB in mine, it is interesting to see the palette variation possible even with just two NB filters in play.

Mike
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  #7  
Old 23-06-2015, 04:34 PM
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That is indeed splendid. The contrast and definition of the image is superior to MANY I have seen of this target that usually tend to look somewhat "misty" or Gaussian.

Well done
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  #8  
Old 23-06-2015, 04:34 PM
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Slawomir (Suavi)
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Quote:
Originally Posted by rustigsmed View Post
that is very very nice Slawomir,

excellent details, looking forward to more!
Thank you Russell.

Quote:
Originally Posted by Paul Haese View Post
It's looking pretty good right now Slawomir. I like the extension of OII bubbles from the O star. I got vague hints of those. I can clearly see them in your image. I look forward to your final result.
Thank you Paul. I think that decent detail in OIII bubbles is due to ICX814's good sensitivity for this wavelength. I am only using a 4inch doublet and when shooting from our balcony, I have to collect data with objects relatively low in the sky (35 to 60 degrees above the horizon). I must admit that I love how 3nm Astrodons work with my QSI :-)

Quote:
Originally Posted by Placidus View Post
Very fine indeed, Slawomir! Superb contrast on the most subtle features, without losing anything. In particular the [OIII] bubbles that Paul mentioned are indeed well handled.

Don't know that you need hugely more H-alpha or [OIII] - your image is already smooth and detailed. We found [SII] to be a challenge. There's not so very much in the area, and it would take a long hammering to bring it out.
Yes, perhaps only extra 2 or so hours for Halpha and another 4hrs in OIII. As for SII, well, I am looking forward to the challenge :-)

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Originally Posted by multiweb View Post
That's superb Slawomir!. You nailed it!
Thank you Marc. I made several attempts at this data, but eventually got roughly where I wanted to get :-)
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  #9  
Old 23-06-2015, 04:34 PM
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Octane (Humayun)
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This is simply outstanding, mate.

It is one of my favourite areas of the sky and I've never been able to do justice to it properly. I started collecting narrowband data on it this year, but, other projects have put it on scrap heap for a while. Perhaps next year.

I can't wait to see this completed.

H
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  #10  
Old 23-06-2015, 04:43 PM
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Quote:
Originally Posted by strongmanmike View Post
Excellent image of the fighting dragons Slaw Looking at this image it is not hard to see why it is a popular target this time of year .

I am working on a Bicolour image (of a different target) at the moment, should be finished tonight, although I am incorporating some RGB in mine, it is interesting to see the palette variation possible even with just two NB filters in play.

Mike
Thank you Michael. I have just recently "discovered" this nebula, and it is a very dynamic and interesting DSO. I think it rightly deserves more of my telescope's attention

Looking forward to seeing and contemplating your completed bicolour image.


Quote:
Originally Posted by LewisM View Post
That is indeed splendid. The contrast and definition of the image is superior to MANY I have seen of this target that usually tend to look somewhat "misty" or Gaussian.

Well done
Спасибо Lewis

Quote:
Originally Posted by Octane View Post
This is simply outstanding, mate.

It is one of my favourite areas of the sky and I've never been able to do justice to it properly. I started collecting narrowband data on it this year, but, other projects have put it on scrap heap for a while. Perhaps next year.

I can't wait to see this completed.

H
Thank you Humayun for your encouragement.
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  #11  
Old 23-06-2015, 04:50 PM
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Absolutely gorgeous Slawomir. That really turned out well.

Greg.
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  #12  
Old 23-06-2015, 06:14 PM
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Slawomir (Suavi)
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Quote:
Originally Posted by gregbradley View Post
Absolutely gorgeous Slawomir. That really turned out well.

Greg.
Thank you Greg

Honestly, I did not expect such decent result with relatively limited data I have collected so far. Unfortunately, good weather did not last...
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  #13  
Old 23-06-2015, 07:06 PM
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Eden (Brett)
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Can't fault this one -- excellent choice of palette, too. Nice work, Slaw
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  #14  
Old 23-06-2015, 07:36 PM
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codemonkey (Lee)
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Awesome! Shots like this make me want to actually get around to trying narrowband.
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  #15  
Old 23-06-2015, 07:40 PM
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Rod771 (Rod)
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You must be please with this so far, looks fantastic!
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  #16  
Old 23-06-2015, 08:23 PM
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Andy01 (Andy)
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Looking good Slawomir, but do try for the S2, it'll make it even more 3D then
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  #17  
Old 23-06-2015, 08:53 PM
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Geoff45 (Geoff)
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Great image Slawomir. Lots of fine detail there
Geoff
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  #18  
Old 23-06-2015, 09:03 PM
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Spookyer (Brett)
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Great work, I have been working on this target as well, be happy if mine turns out that good.
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  #19  
Old 23-06-2015, 09:04 PM
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Thank you all for your very kind feedback.

I will certainly continue working on this project, when we get a clear night.

I have also learnt that flats will certainly be needed to remove gradients near the edges around the entire image - I suspect some reflections within the CCD chamber or maybe light gets bent on the edges of the CCD itself. Luckily this pattern is consistent for all subs and I have not rotated the camera. With shorter exposures I got away with using Dynamic Background Extraction in PI...
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  #20  
Old 23-06-2015, 09:09 PM
Stevec35 (Steve)
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Love it! A superb effort.

Steve
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