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  #1  
Old 23-05-2011, 06:23 PM
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Dust around NGC 3576

This is really a re-pro.

Pushed the data beyond reasonable limits to show the ugly bits of noise etc. but there were some nice surprises too!

here it is, warts and all
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  #2  
Old 23-05-2011, 07:25 PM
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What's going on down there oh my God!
I begin to fall in Love with the Southern Sky....
Great Image mate Keep em coming all the way up here!
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  #3  
Old 23-05-2011, 09:35 PM
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Yeah I remember that one. The brown dust really sticks out of the Ha neb. Nice.
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  #4  
Old 23-05-2011, 10:26 PM
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That's great. How many hours of Lum did it take to show that?

I am imaging this one at the moment. A very interesting area.

Greg.
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  #5  
Old 24-05-2011, 09:59 AM
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Quote:
Originally Posted by gregbradley View Post
That's great. How many hours of Lum did it take to show that?

I am imaging this one at the moment. A very interesting area.

Greg.
Thanks Greg, I think it was about 4 hours...
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  #6  
Old 24-05-2011, 11:22 AM
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Interesting to see the dust there, but the brown is a bit depressing... Next thing, H will be calling this a low contrast HDR image!

Can you post a link to one with a bit "blacker" background for comparison? I'd like to see how the target nebulosity "isolates" from the background.

DT
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  #7  
Old 24-05-2011, 11:54 AM
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Quote:
Originally Posted by DavidTrap View Post
Interesting to see the dust there, but the brown is a bit depressing...
I suspect the brownish tinge is accurate, as the dust would indeed redden any transmitted light. David Malin waxes lyrical about this sort of thing
in many of his books

I could psuedo colour it, but what would be the point? The original (darker background) version from a year or so ago is here
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Old 24-05-2011, 02:56 PM
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Thanks for posting the comparison image.

I'm not denying the brown dust's existence, but see it a bit like atmospheric haze that ruins distant landscape shots. Personally, I don't think it adds to the picture and I prefer your original version, not just for the darker background, but for the better contrast that helps demonstrates the dust lanes. Also, I think the new version has less contrast/definition in the core of the nebulosity.

DT
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Old 24-05-2011, 06:55 PM
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Nice Pete...love the colors.
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  #10  
Old 24-05-2011, 07:04 PM
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WOW!really well done and amazing colours...BRAVO!
Fabiomax
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  #11  
Old 24-05-2011, 07:37 PM
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Originally Posted by Fabiomax View Post
WOW!really well done and amazing colours...BRAVO!
Fabiomax
Thanks guys.

I'm thinking I might have to properly reprocess the data using
the technique described by Jay G'bany in a recent S&T.... given the storms that are predicted to hit Sydney tonight...maybe not a bad idea
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Old 25-05-2011, 12:38 PM
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Hmmm, I reckon I like the original more. I like the vibrancy of this new one but I like the brownish tones in the background of the original. Not sure about the magneta pink in the new one either. Any chance of something inbetween?
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  #13  
Old 26-05-2011, 04:22 PM
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Original one takes my vote Peter. This one certainly shows the dust but the colour is scarry.
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  #14  
Old 26-05-2011, 07:41 PM
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Original one takes my vote Peter. This one certainly shows the dust but the colour is scarry.
No argument from me...I did say warts and all !
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  #15  
Old 26-05-2011, 08:30 PM
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I like the repro "warts and all".
It just shows a lot and might even be a true representation of what is out there (who knows).
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