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  #1  
Old 08-01-2008, 06:21 AM
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theodog (Jeff)
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Cg4

Morning All,
Just finished an all nighter.
I thought I would test the Argo navis on CG4 by co-ordinates.
Seems to have worked very well.
6x10min subs
3x10minRGB 2x2binned
Combined, balanced, fixed some pixels in MaximDL.

Its not pretty but there.

I'm off to bed.
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  #2  
Old 08-01-2008, 06:42 AM
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iceman (Mike)
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ah I remember some famous images of that object, very fascinating.

Nice work Jeff!
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  #3  
Old 08-01-2008, 08:01 AM
jase (Jason)
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Good work on the cosmic hand Jeff. Like the composition. Though you need to rework the data. The RGB channel histograms are all over the place. Simply raising the blue and green channels will darken the sky, but you've also clipped the red. Overall, well done.
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  #4  
Old 08-01-2008, 08:55 AM
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theodog (Jeff)
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Quote:
Originally Posted by jase View Post
Though you need to rework the data. The RGB channel histograms are all over the place. Simply raising the blue and green channels will darken the sky, but you've also clipped the red.
Yes, the colours were just thrown together and pushed, not the thing you should do when you're tired, will try again throughout the day. I intend to gather more data tonight, partner willing, both to improve signal and mosaic full object. After this I should have something more presentable.

Now that my eyes are clear it is a shocker.
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  #5  
Old 08-01-2008, 11:21 AM
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vash (Ashley)
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I was trying to remember what this object was called yesterday.
Thanks for the reminder,
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  #6  
Old 08-01-2008, 03:22 PM
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Gee very nice, you people and your dark skies, thats so difficult to photograph from Newcastle.
Scott
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  #7  
Old 08-01-2008, 06:40 PM
Alchemy (Clive)
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showing my ignorance here, does it have a more common name ngc? if not whats its co-ordinates?
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  #8  
Old 08-01-2008, 07:51 PM
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glenc (Glen)
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The cometary globule CG 4 is at RA 07 33.6, dec -46 57
Another image and description is at http://antwrp.gsfc.nasa.gov/apod/ap070806.html
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  #9  
Old 08-01-2008, 09:55 PM
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Nice capture Jeff, I suspect that this is not an easy object to capture so congrats for that.

I definitely would like to see this DSO with more data captured and some more processing.

Cheers
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  #10  
Old 09-01-2008, 01:46 AM
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EzyStyles (Eric)
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nice one jeff. think that might be too dim from my location.
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  #11  
Old 12-01-2008, 10:47 AM
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theodog (Jeff)
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Hi all,
I've completed some more L data now 26x10min.
Reprocessed and 'balanced?' Still not sure about balance. Also enhanced & cropped.
If I learned one thing -this is a very difficult subject.
However, enough 'cosmic monster', and back to galaxies.
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  #12  
Old 12-01-2008, 11:18 AM
AJames
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Smile "Nebula Eats Galaxy"

theodog.

This image always reminds by of Stargate SG-1 and the nasty snake-like symbiotes creatures of the Goa'uld.
(See picture at http://en.wikipedia.org/wiki/Goa'uld )

Also reminds me of Homer Simpson...

"Hummmmm, galaxy for breakfast...." (followed by lots of drooling)

Good picture though...

Andrew
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  #13  
Old 12-01-2008, 11:39 AM
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Lester
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Very nice image Jeff.

Could you go with a smaller image scale to fit more of the object in the field of view?
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  #14  
Old 12-01-2008, 01:25 PM
tornado33
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Very detailed image of a very faint subject there Jeff. Can easily see the prominent darkening of the top part of the "mouth" of the monster. An impossible subject for big city dwellers as being a broadband emitter, nebula filters are mostly ineffective in bringing it out of the sky background.
Scott
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  #15  
Old 12-01-2008, 02:13 PM
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You've definitely brought a lot more out with the extra data, its come up very nicely.

This one always reminds me of those Sandworms from the "Dune" novels.

Cheers
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  #16  
Old 13-01-2008, 12:20 AM
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theodog (Jeff)
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Thanks all for the positive comments. I'm still not happy with it, but i've put it on the backburner for the moment.

Yes it does look like something out of science ficton.
Quote:
Originally Posted by Lester View Post
Very nice image Jeff.

Could you go with a smaller image scale to fit more of the object in the field of view?
Yes Lester, I had changed the image size sometime in the past and took the coloured subs. The L subs were full frame. I had to crop to the coloured sub size & edge of frame issues.
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