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Captured by
Lawrence Parchman

Sculptor Galaxy (NGC 253)

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Posts Made By: dan kowall

August 25, 2006 02:24 PM Forum: CCD Imaging and Processing/Deep Sky

Another go at the Iris Nebula.......

Posted By dan kowall
I've looked at a lot of versions of the Iris lately, Tom, and I haven't seen any that show the dust as extensively or with such color as yours.
Impressive!

dan

August 29, 2006 07:40 PM Forum: CCD Imaging and Processing/Deep Sky

Orion Nebula

Posted By dan kowall
Hi Greg,
You might want to check your color balance. The Running Man is a reflection nebula and should have a blue cast.
Other than that, it's a pretty good shot.

dan kowall

September 5, 2006 03:29 PM Forum: CCD Imaging and Processing/Deep Sky

A Late Season Swan

Posted By dan kowall
Jim Thommes said:
...... I did this without noise reduction. (Of course this object is fairly bright and has good signal to noise.)

I think you're right, Jim. This one didn't need noise reduction. As Gendler has written, "A little grain isn't a bad thing", but I don't see any here.
I think that you could increase your red balance even further if you wanted to, but be advised that I'm partial to 'electric' red for Ha.
My regards,

dan

September 5, 2006 03:37 PM Forum: CCD Imaging and Processing/Deep Sky

NGC 6231

Posted By dan kowall
The star colors look good, Louie, and it's not overly processed.
Good job.

dan

September 6, 2006 01:44 PM Forum: CCD Imaging and Processing/Deep Sky

M31

Posted By dan kowall
Detail looks good in your image, Jason, but you should equalize your black points; The blue and green are off a bit.
The TEC 140 is gaining quite a reputation as an imager's scope, and an excellent value, too.

dan kowall

September 9, 2006 03:30 AM Forum: CCD Imaging and Processing/Deep Sky

NGC 281

Posted By dan kowall
Thanks, guys!

dan

September 9, 2006 07:55 PM Forum: CCD Imaging and Processing/Deep Sky

Bubble in narrow band

Posted By dan kowall
For those of you not familiar with narrowband imaging who may not fully appreciate this image, here is an image with a 20" RC and 24 hours! of exposure:
http://www.rdelsol.com/Nebula/NGC7635_NB.html
The OIII and the SII components in narrowband imaging are usually exceedingly dim. I was taking some SII exposures last night, and even though the subexposures were one hour long, I still couldn't see my object in the subs.
That's an excellent start, Rolando. Exquisite detail.

dan kowall

September 10, 2006 03:05 PM Forum: CCD Imaging and Processing/Deep Sky

IC 1284 Region

Posted By dan kowall
I've never seen this area, Jim.
Thanks for introducing me to it. It looks like you've done it justice.

dan

September 11, 2006 04:07 PM Forum: CCD Imaging and Processing/Deep Sky

M27 in H-alpha with Orion ST120

Posted By dan kowall
Great job, David!
Your manual guiding worked well and you haven't clipped your black point (like many of us do).
Try stretching your data more, though. You want to fill up as many of those 256 histogram slots that are available.
Attached is a quick stretch of your data. I'm sure that you could do better with the original data, but it shows that you have some good data lurking there.

dan kowall
photonhunter.com

September 11, 2006 10:25 PM Forum: Home Observatories

HOA Blues.... :(

Posted By dan kowall
Here's a chance to use your Photoshop skills.
Get a pretty picture of a structure similar to what you want to build and paste it onto a picture of your back yard.
Present that to the association and call it something other than a shed (a word which can be used to descibe some run-down structures sometimes). 'Cottage' usually gives people a warm feeling. Call it a 'yard cottage'.
I built my observatory using the same 'architectural language' as my house (see attached photo).
I wanted it to blend in and not attract attention.

dan

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