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Posts Made By: dan kowall

March 6, 2005 09:35 PM Forum: CCD Imaging and Processing/Deep Sky

Balancing on M81

Posted By dan kowall
I've been trying a new technique for stretching my RGB masters without losing balance while preserving detail. It seems to be working okay. Here it is applied to a test shot of M81.
ST10XME on a 12" reflector @ f/9
LRGB: 110-35-30-45 minutes
I like it when things work out.

dan kowall

March 8, 2005 06:28 PM Forum: CCD Imaging and Processing/Deep Sky

M 3

Posted By dan kowall
I've been doing galaxies and nebulae lately, so this one was a nice change of pace for me.

ST10 on a 12" reflector @ f/9
RGB: 20-20-30 minutes in poor seeing

Thanks for looking,

dan kowall

March 12, 2005 04:49 PM Forum: CCD Imaging and Processing/Deep Sky

Ring in Spring

Posted By dan kowall
M 57 taken over two nights.
ST10 on a 12" reflector @ f/9
LRGB: 60-40-40-45 minutes

Thanks for looking,

dan kowall

March 21, 2005 10:06 AM Forum: CCD Imaging and Processing/Deep Sky

M 82

Posted By dan kowall
Hello all,
This is turning out to be some sort of benchmark image for me. As I keep learning new processing techniques, I keep returning to M 82 and reprocessing the data. This time I added some Ha to the mix. I'm heartened that at least it seems to be looking better each time. It's no fun taking backward steps.

ST10 on a 12" reflector @ f/9
L(HaR)GB: 50-(150-20)-20-25 minutes

Thanks for looking,

dan kowall

June 6, 2005 02:31 PM Forum: CCD Imaging and Processing/Deep Sky

M 27 Test

Posted By dan kowall
Hello all,
I've been trying to dial in a new mount but when you only have one clear night every couple of weeks it takes a while. I'm down to making the final tweaks on polar alignment but I couldn't resist trying a test image last night. The usual excuses when doing a test image: manual focusing, old flats, wrong darks, and nothing working at its best. I couldn't seem to get the proper teal color on the nebula, either, but it sure was a treat to get something.
ST10 on a 12" reflector
LRGB: 60-30-30-30 minutes in poor seeing
minimal processing

dan kowall

June 8, 2005 01:17 PM Forum: CCD Imaging and Processing/Deep Sky

Miss or Mosaic? Crescent

Posted By dan kowall
I thought I was taking an image of the Crescent Nebula last night, but after processing, I realized that I only got part of it. In my defense it is rather dim in Ha.
Now I just have to decide whether to file it under 'Misses' or 'Future Mosaics".
ST10XME on a 12" reflector at f/9
6nm Ha: 2 hours

Thanks for looking,

dan kowall

June 20, 2005 01:23 PM Forum: CCD Imaging and Processing/Deep Sky

Shock Waves in Cygnus

Posted By dan kowall
This is from last night:
IC 5067
ST10 on a 12" reflector at f/9
6nm Ha: 3.5 hours
minimal processing

Thanks for looking.

dan kowall

July 24, 2005 09:55 AM Forum: CCD Imaging and Processing/Deep Sky

Blurry Bubble

Posted By dan kowall
I should have taken the time to refocus before I started this exposure last night. Big D'Oh on my part. Good imaging nights have been infrequent and I hate to waste them.

ST10XME on a 12" reflector at f/9
about 4 hours of Ha at 6nm

Consider this the 'before' of a 'before and after' series.

dan kowall

July 29, 2005 05:31 PM Forum: CCD Imaging and Processing/Deep Sky

A Better Bubble

Posted By dan kowall
I posted a blurry Bubble a few days ago (bad focusing).
I reshot it, and this time I was more careful about focusing.
Have a look, I promise this one won't make you cross-eyed.

ST10XME on a 12" reflector at f/9
4 hours Ha, 6nm, in mediocre seeing
minimal processing


Comments welcomed.

dan kowall

August 3, 2005 11:17 AM Forum: CCD Imaging and Processing/Deep Sky

NGC 7538

Posted By dan kowall
From last night:
ST10 on a 12" reflector at f/9
4 hours of 6nm Ha in decent seeing.

Thanks for looking,

dan kowall

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