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Captured by
Douglas Rollain

Lion Nebula SH2-132 - RC71

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Posts Made By: Thomas V Davis

June 28, 2007 02:16 AM Forum: CCD Imaging and Processing/Deep Sky

Two H-alpha images - the moons up ya' know

Posted By Thomas V Davis
I haven't posted a purely H-alpha image in a while so I thought I'd post two!

First:

region in Cygnus around NGC6814
ASA N12 f/3.5
STL11k Ha 6nm 340min

Tom

July 9, 2007 07:05 PM Forum: CCD Imaging and Processing/Deep Sky

The skies are smoky so.....

Posted By Thomas V Davis
The skies are smoky so I could not shoot RGB frames for some projects that I am working on. So, I decided to shoot a little of the East Veil with a Ha filter. This is a "short" exposure through smoky skies. It needs more time, but some good detail is already there.

ASA N12 f/3.5
STL 11k 6nm Ha 120 minutes

Tom

July 11, 2007 04:19 AM Forum: CCD Imaging and Processing/Deep Sky

vdB132 and NGC6914; Cygnus

Posted By Thomas V Davis
I thought I'd give this region a try because of its complex clouds and color. I thought is would be relatively easy, ya know, blue clouds in a red field. I was wrong. I find this region to be very challenging to process without messing up the color. In fact I'm not sure if I even succeeded. The blue region is almost completely invisible in the Ha. All its details came from the RGB. Maybe I should add some clear filter data to this sometime...

http://www.tvdavisastropics.com/astroimages-1_00000b.htm

I should double my exposure time but I'm restless -- time to move on!

Tom Davis
Inkom, ID

July 21, 2007 03:41 AM Forum: CCD Imaging and Processing/Deep Sky

This is poor, but my hands are tied.........

Posted By Thomas V Davis
This image is poor (i.e. didn't meet my expectation), but my hands are tied due to the persistent smoke from the 40 something wildfires in my region of the US. This image was shot through varying degrees of smoke. Here are my other excuses: I could not get red files but I had Ha so I used them for red, Ha files greatly overwelms the green and blue so the OIII region are not seen. Bummer...

Hopefully the skies will clean out before summer ends so I can complete this in a decent manner.

Tom



July 22, 2007 02:07 AM Forum: CCD Imaging and Processing/Deep Sky

Veil Nebula East finally done :)

Posted By Thomas V Davis
I was able to get some red data last night and so I processed an RGB image and combined it with the Ha data that I had. The color balance is much better and the OIII regions are very apparent (blueish filaments). I like this version better than the last (the HII region is still striking but the stars are not as bias towards the cyan). Do you agree with me?

http://www.tvdavisastropics.com/astroimages-1_00005e.htm

Best,

Tom

July 28, 2007 08:15 PM Forum: CCD Imaging and Processing/Deep Sky

A short go at the western Veil

Posted By Thomas V Davis
I was rudely interrupted last night by some clouds so my planned 3.5 hours run was cut short to 80 minutes. Still, the detail is there and the depth is coming. More data tonight I hope.......

Tom

August 4, 2007 03:33 AM Forum: CCD Imaging and Processing/Deep Sky

M27 revisited

Posted By Thomas V Davis
Weather is still hampering me so I decided to reprocess some old data. This is from last summer.

http://www.tvdavisastropics.com/astroimages-1_000038.htm

I think it turned out better.

Tom

August 10, 2007 03:12 AM Forum: CCD Imaging and Processing/Deep Sky

Western Veil and Pickering's Triangle

Posted By Thomas V Davis
Just as with the eastern veil nebula, I found this region to be very challenging to process -- so many stars. I also found suppressing 52 Cygni, so the see the delicate filaments around it, to be a headache. The Ha suppressed some of the OIII blue green but I was trying to bring out the many HII filaments of the region.

Anyway, this is what I came up with:

http://www.tvdavisastropics.com/astroimages-1_000002.htm

Comments/Criticisms are always welcome.

Best,

Tom

August 12, 2007 01:09 AM Forum: CCD Imaging and Processing/Deep Sky

M31

Posted By Thomas V Davis
Here is my first attempt at M31 with the N12. It needs more data but I think it's a solid start.

http://www.tvdavisastropics.com/astroimages-1_00000d.htm

Tom

August 13, 2007 06:44 PM Forum: CCD Imaging and Processing/Deep Sky

M31 -- brighter

Posted By Thomas V Davis
Sorry for the re-post, but I received some comments that my recent M31 was a little too dark. I reprocessed to lighten it without washing out the details. Please let me know if it looks better on your monitor. The original image has been removed and replaced with this new one.

http://www.tvdavisastropics.com/astroimages-1_00000d.htm

Thanks again for all of your comments and criticisms.

Tom


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