Astromart

March 2, 2007 03:20 PM Forum: CCD Imaging and Processing/Deep Sky

M 108

Thanks for the comments!

dan

March 10, 2007 03:03 PM Forum: CCD Imaging and Processing/Deep Sky

The colors are right on, Jason, and the star shapes are natural, but you could certainly do a couple hits of curves on this. Pull up on the middle of the line until the background just starts to show on the second go around. See if you like that.

dan

March 17, 2007 03:02 PM Forum: CCD Imaging and Processing/Deep Sky

ngc 3628

Posted By dan kowall

Excellent!

dan

March 19, 2007 09:33 PM Forum: CCD Imaging and Processing/Deep Sky

Another NGC 3628

Posted By dan kowall

Good color and detail, Jason.
If you need help with autoguider settings, here's a good place to start:
http://www.ccdware.com/resources/autoguidercalcv4.cfm

dan

March 20, 2007 04:04 PM Forum: CCD Imaging and Processing/Deep Sky

M106

Posted By dan kowall

Excellent work, Jim.
The color's right on and you got a lot of the diffuse outer stuff.
My regards,

dan

March 22, 2007 10:50 PM Forum: CCD Imaging and Processing/Deep Sky

Leo's Triplet last night

Posted By dan kowall

Tom Osterholt said:
I am taking several 1X flats and meridian combining them and then again the same with 2X, I don't think that I need to take separate flats for each color channel, Do I???? Anyway... any advise would be greatly appreciated.

Although darks must be taken at the same binning as your subexposures, flats do not. It is okay to take flats unbinned and resize them for your binned exposures. In fact, these flats will work better than a binned flat.
Do you have Ron Wodaski's first book? He covers this topic well.
How are you taking your flats-light box, T-shirt, or sky? You want to get up to about 50% of your full well capacity and take at least a dozen flats to combine into a master flat.
In most cases you will need to take separate flats for each filter. Dust motes will be in different places on the different filters.

dan

March 23, 2007 09:08 PM Forum: CCD Imaging and Processing/Deep Sky

Byebye Horsey

Posted By dan kowall

Not bad, Roland.
You've got that delicate dust structure in the Flame that one doesn't usually see, the tiny natural stars, and that star in the Horse's mane that often gets lost somehow.
That TCC turns the 155 into a real race horse-it beat this Horse Head.
My regards,

dan

April 2, 2007 03:38 PM Forum: CCD Imaging and Processing/Deep Sky