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Captured by
Douglas Rollain

Lion Nebula SH2-132 - RC71

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Posts Made By: Jim Thommes

August 9, 2005 04:06 AM Forum: CCD Imaging and Processing/Deep Sky

M22

Posted By Jim Thommes
Thanks Tyler.

I did mention on the webpage that there is a planetary nebula in M22 (http://jthommes.com/Astro/m22.htm). but I did not point it out.

Here is a small crop with an arrow pointing to planetary nebula IRAS 18333-2357 in M22. My ID is based on SEDS info.

August 22, 2005 05:07 AM Forum: CCD Imaging and Processing/Deep Sky

M 27

Posted By Jim Thommes
Dan,
Super image!

Looks like some guys over at QCUIAG (yahoo.groups) have found a nova 20th , 21st of August. I don't know exactly when you got your image, but what they are seing is clearly not in yours. Your depth which seems pretty good may even show the pre-nova star if that's what it turns out to be.

August 23, 2005 06:18 AM Forum: CCD Imaging and Processing/Deep Sky

H-alpha view of Pelican Nebula -- wide and narrow

Posted By Jim Thommes
Tom,
Great Images!. I too like the wide field best - both are outstanding. I have taken some data on this object as well. Hope to get it out in a week or so.


August 30, 2005 04:32 AM Forum: CCD Imaging and Processing/Deep Sky

M20 Trifid Nebula

Posted By Jim Thommes
Tyler,
Congrats - this is a really fabulous image.

I have a friend with the Astrodon filters - He likes them a lot and I hear they do a good job with the Blue/Green balance. My friend has a full set of RGB and Narrowband Astrodon filters all on his ST10 filter wheel. Since they are all par focal, I see him focus only once. Hmm. must be nice.


August 30, 2005 04:40 AM Forum: CCD Imaging and Processing/Deep Sky

Pelican - IC5070

Posted By Jim Thommes
Greg, Tyler,

Thanks for the comments...

September 3, 2005 07:17 PM Forum: CCD Imaging and Processing/Deep Sky

m1 a compsite image

Posted By Jim Thommes
Larry,
This is a great image - congrats.

I agree, this object can be seen rendered different ways in different images on the net and elsewhere. If I would say anything about color, I would say the green got too strong somehow. My 2 cents worth...

September 3, 2005 07:28 PM Forum: CCD Imaging and Processing/Deep Sky

M16 Eagle from 10,000 feet

Posted By Jim Thommes
Tyler,
This Eagle looks pretty good at 10,000 feet - clouds or not. Congrats.

Hmm, 600 seconds at f/3.9. I don't know of you can turn the antiblooming on and off, but I guess it was definitely on for this image.


September 3, 2005 08:40 PM Forum: CCD Imaging and Processing/Deep Sky

M15 - (Ho-Hum)

Posted By Jim Thommes
Thanks for the comments guys. I would still like to do better with this object - maybe later.


September 7, 2005 04:50 AM Forum: CCD Imaging and Processing/Deep Sky

M20 & M21

Posted By Jim Thommes
Jim,
Great Image and nicely framed. I love the widefields in this area.

Interesting technique on the composite - looks like it worked out well for you.


September 7, 2005 08:30 PM Forum: CCD Imaging and Processing/Deep Sky

Autoguiding with a QC4000?

Posted By Jim Thommes
Jeffry,
I was guiding with a Vesta Pro. With that camera, there was a way to get its electronic shutter to run .2 sec. That was enough to get me about a mag 5.5 to mag 6 star with an 80mm refractor at 1200mm. I don't know if the Quickcam can do something similar, but I would guess if your shutter is at 1/10 or 1/25 you are getting about the best you can.

Again, I can't speak for the QC, but the Vesta did no better in B&W.

I currently use a LE modified ToUcam and I can guid on mag 8 stars on a night with good seeing.

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