Atik Cameras

Author Topic: NGC6888 - Crescent Nebula - 2012Jul05 (with 428Ex)  (Read 9889 times)

bwa

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NGC6888 - Crescent Nebula - 2012Jul05 (with 428Ex)
« on: July 06, 2012, 12:41:22 pm »
Took another stab at narrowband imaging under a full moon:

http://tinyurl.com/bwaNGC6888-2012Jul05

I suspect I could get more of the reflective nebulosity w/o moonlight?  I was also having dew problems with the scope all night.  No problems w/ ATIK CCD.

Enjoy!

bwa

MikeM

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Re: NGC6888 - Crescent Nebula - 2012Jul05 (with 428Ex)
« Reply #1 on: July 06, 2012, 01:48:42 pm »
Nice work there bwa... the outer OIII shell is starting to show nicely.
Clear Skies!!
Mike

FSQ106N - AT8RC
G-11

bwa

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Re: NGC6888 - Crescent Nebula - 2012Jul05 (with 428Ex)
« Reply #2 on: July 06, 2012, 08:12:32 pm »
I took another look at the image this morning (after a few hours sleep) and don't like the background color or the fact I probably over sharpened the image...  A bit of reprocessing required!

bwa

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Re: NGC6888 - Crescent Nebula - 2012Jul05 - Reprocessed
« Reply #3 on: July 06, 2012, 09:14:52 pm »
Took another run at processing this image:

http://tinyurl.com/bwaNGC6888-2012Jul05Repro

Enjoy!

bwa

MikeM

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Re: NGC6888 - Crescent Nebula - 2012Jul05 (with 428Ex)
« Reply #4 on: July 09, 2012, 01:42:53 pm »
Hi Brian, i like the reprocess, a much better result.  The original had an overall magenta cast which is not present in this image.
This version is not as over sharpened as the previous also. Good job!

Clear Skies!!
Mike

FSQ106N - AT8RC
G-11

bwa

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Re: NGC6888 - Crescent Nebula - 2012Jul05 (with 428Ex)
« Reply #5 on: July 10, 2012, 01:29:45 am »
Thanks for looking

bwa

petervde

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Re: NGC6888 - Crescent Nebula - 2012Jul05 (with 428Ex)
« Reply #6 on: July 12, 2012, 09:30:15 pm »
The second run of your image processing is definitely the better one; the first one was indeed a tad too much sharpening...

Beautiful image. Nice image scale as well.

Peter