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Captured by
Lawrence Parchman

Sculptor Galaxy (NGC 253)

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Posts Made By: dan kowall

February 11, 2005 06:08 PM Forum: CCD Imaging and Processing/Deep Sky

Horsehead from Utah

Posted By dan kowall
That's a very nice image, Tyler, especially for your exposure times.
As far as focusing goes, a Hartmann mask would help. The Tak 10:1 microfocuser might make things easier, too. To get really accurate, you would probably need to get automated. The RoboFocus works well on the Taks because it goes on the rack-and-pinion shaft. I believe some of the thinner focusers (like the DF-2?) that go in the optical train also work well.
The Hartmann mask costs $0, a rarity in astro equipment. You might want to try that one first.

dan kowall

February 19, 2005 03:31 PM Forum: CCD Imaging and Processing/Deep Sky

OT: Revised Website

Posted By dan kowall
That is well done, Jose. I like the colors and type styles that you have chosen. Your terrestrial images are outstanding. You obviously have an affinity for vibrant colors.
(Check your spelling for terrestrial and observatory).

dan kowall

February 20, 2005 03:56 AM Forum: CCD Imaging and Processing/Deep Sky

Tilting at a Windmill

Posted By dan kowall
Thanks for the feedback, gentlemen.

dan kowall

February 24, 2005 03:02 PM Forum: CCD Imaging and Processing/Deep Sky

Another Horsehead in H-a

Posted By dan kowall
That is already smooth and detailed, Cal. You've captured the background wisps extremely well.

dan kowall

February 27, 2005 05:08 PM Forum: CCD Imaging and Processing/Deep Sky

First Light: M42

Posted By dan kowall
Nicely done, Tom. You've handled the big dynamic range of this object very well. How long were your subexposures?
Since you have a lot of exposure time on this, I'm a little surprised that we don't see more detail in the Running Man, but I'm guessing that will show once you flat it out.
Excellent first light for this camera.

dan kowall

March 4, 2005 05:14 PM Forum: CCD Imaging and Processing/Deep Sky

Thor's Helmet (NGC2359)

Posted By dan kowall
Your website images of Thor's Helmet are just incredible, Johannes. I don't see any evidence that it was low on the horizon for you. The star colors are great and you have a lot of detail in the nebulosity. I'm envious of your exposure times: Imaging at f/3 sure has some advantages.
I like how you substituted the Ha, too.

dan kowall

March 6, 2005 03:39 AM Forum: CCD Imaging and Processing/Deep Sky

M42 from January, reprocessed

Posted By dan kowall
That's very nice, Don. You've got good color and a lot of extended nebulosity. Well done.

dan kowall

March 7, 2005 05:22 AM Forum: CCD Imaging and Processing/Deep Sky

M42 with STL revisited

Posted By dan kowall
That's a breathtaking M42, Tom.

dan kowall

March 12, 2005 03:27 PM Forum: CCD Imaging and Processing/Deep Sky

Markarian's Chain

Posted By dan kowall
Excellent job, Tom. It's smoothly processed with great detail in the dust lanes and the color is right on target. Even the tiny galaxies show detail.

dan kowall

March 13, 2005 12:35 AM Forum: CCD Imaging and Processing/Deep Sky

M51 with ST-237A

Posted By dan kowall
You have a great start there, Ralph. I think if you got two more 20 minute subs you could really smooth that out. At least you wouldn't need more darks. If you do add to this image, make sure you post it to us.

dan kowall

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