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Lion Nebula SH2-132 - RC71

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Posts Made By: Jim Thommes

December 9, 2006 11:18 PM Forum: CCD Imaging and Processing/Deep Sky

Sculptor Galaxy

Posted By Jim Thommes
Here is an image of NGC 253. It is low in my sky so I applied Atmospheric Extinction factors to the RGB's in processing to establish a more representative color. Full size image and processing details are at:

http://jthommes.com/Astro/NGC253.htm

This image was taken with my C8 Scope at f/5.8

An earlier 2004 image can be seen here:

http://jthommes.com/MiscAstro/Archives/NGC253.htm

Images ar rotated 180 degrees from each other.

December 17, 2006 11:26 PM Forum: CCD Imaging and Processing/Deep Sky

M39

Posted By Jim Thommes
Here is a quick shot of well known cluster. Full size image and exposure / processing details are at:

http://jthommes.com/Astro/M39.htm

The image is a wide field image. Click on the image for a full res image with greater detail.

Earlier image is here:

http://jthommes.com/MiscAstro/Archives/M39.htm

January 1, 2007 11:08 PM Forum: CCD Imaging and Processing/Deep Sky

Sharpless 254 through 258

Posted By Jim Thommes
Happy new year to all! It has been a busy holiday season for me - I hope to get back to more astronomical endeavors...

Here is a part of the sky in Orion that features 5 Sharpless objects Sh2-254 through Sh2-258. A full size image and exposure and processing details can be seen at:

http://jthommes.com/Astro/SH2-254_258.htm



January 8, 2007 04:34 AM Forum: CCD Imaging and Processing/Deep Sky

NGC 2174 - HA RGB

Posted By Jim Thommes
Here is NGC 2174 in Orion that I got the data on just before Christmas. Full size image and exposure and processing details are at:

http://jthommes.com/Astro/NGC2174.htm

Scope was Megrez II APOGrade at f/5.2. Camera was Artemis285

Here is an earlier version (January, 2004):

http://jthommes.com/MiscAstro/Archives/NGC2174.htm

January 14, 2007 11:16 PM Forum: CCD Imaging and Processing/Deep Sky

M82 Galaxy

Posted By Jim Thommes
Here is M82 taken just before Christmas. I worked this data a bit hard with color saturation and sharpening. Full size image and exposure and processing details are at:

http://jthommes.com/Astro/M82.htm


Earlier version with a ToUcam SC3 is here:

http://jthommes.com/MiscAstro/Archives/M82.htm

January 23, 2007 03:24 PM Forum: CCD Imaging and Processing/Deep Sky

Head of the Jellyfish

Posted By Jim Thommes
I have done a close up shot of the head of the Jellyfish - IC443.This was a composite of HA and RGB. The HA was used for Luminance and the RGB's were the color data of course. Full size image and exposure / processing details are here:

http://jthommes.com/Astro/IC443.htm

Camera was my Artemis285, Scope was my C8 at F3.3

I do have an earlier image in a wider field taken with a ToUcam:

http://jthommes.com/MiscAstro/Archives/IC443.htm


February 1, 2007 05:35 AM Forum: CCD Imaging and Processing/Deep Sky

Sharpless 2-240

Posted By Jim Thommes
So I thought I would go ahead and post this. Actually it was a lot of fun. For those of you who have done Sh2-240 you know you need a wide field and good decent exposure. I'm not sure I got enough of either. (and I was binned 2x2 at f/4 with the H-Alpha).

Frequently, I do a high bin (4x4) test image for 30 seconds or so to verify object framing. For this guy, I binned 5x5 and still couldn't see anything in the test image. Talk about your faint fuzzies.

The full size image is here:

http://jthommes.com/Astro/Sh2-240.htm

Processing was, well, interesting. A lot of effort to see the nebula so yes, overprocessing is rampant here. I deliberately set the background high to see more structure.

So it was a lot of fun, but it's already on my list for next year as a retry.

February 5, 2007 12:11 AM Forum: CCD Imaging and Processing/Deep Sky

Open Cluster - NGC 2204

Posted By Jim Thommes
Here is an open cluster in Canis Major. This was done from my driveway in the city so the light pollution was bad. But there are a few Mag 18 stars anyway. Image data was collected in early January.

Camera - Art285, Scope - C8 at f/6

Full size image and exposure / processing details are at:

http://jthommes.com/Astro/NGC2204.htm


February 10, 2007 05:33 AM Forum: CCD Imaging and Processing/Deep Sky

Running Man and Cluster NGC 1981

Posted By Jim Thommes
This is an image of the Running Man - NGC 1977. The field is framed so that the cluster (NGC 1981) just above the Running Man is also in the image. Full size image and exposure / processing details are at:

http://jthommes.com/Astro/RunningMan.htm

The data was taken with my Artemis285 and Megrez II at f/5.2

This is the "other" Orion object that requires care in data collection and processing due to the bright stars and dimmer nebula. In this image, luminance was done with only one exposure setting. The Artemis is able to span the range. I did combine several stretches of the same exposure to control star size on the bright stars - so I did give the Artemis some help.

An earlier image done in 2004 is here:

http://jthommes.com/MiscAstro/Archives/RunningMan.htm

February 19, 2007 12:00 AM Forum: CCD Imaging and Processing/Deep Sky

Not the Horses Head.

Posted By Jim Thommes
OK, this is not the well known Horsehead typical of this time of year, but instead, one of its close neighbors. It is a close up of the head of the Seagull Nebula - IC 2177. Conditions were not ideal in that there was a little bit of a breeze and my equipment struggles in anything more than a few puffs. As such the image is a bit soft.

Full size image and exposure / processing details are here:

http://jthommes.com/Astro/IC2177(Closeup).htm

The scope was my C8 at f/4.and the camera was my Artemis285

I also have a full wide field of the Seagull here for an earlier outing:

http://jthommes.com/Astro/Seagull.htm


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