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Lion Nebula SH2-132 - RC71

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Posts Made By: Jim Thommes

February 17, 2008 12:55 AM Forum: CCD Imaging and Processing/Deep Sky

Sharpless 280

Posted By Jim Thommes
Greetings,
Here is an image of Sharpless 280. It is an emission complex about 2.5 degrees South of the Rosette Nebula in Monoceros. Full size image and exposure / processing details are at:

http://jthommes.com/Astro/SH2-280.htm
(be sure to click on the image for full size)

Subframes were 10 minutes on this image.

scope - C8 at f/3.6
Artemis285 (Ha RGB filters)
G11/Gemini
Guiding - WO Megrez II at 1350 mm FL, DSI Pro, K3CCDTools

February 21, 2008 04:55 AM Forum: CCD Imaging and Processing/Deep Sky

M67

Posted By Jim Thommes
Here is M67. I got this image one night from my driveway in heavy light pollution. Too much weather going on in January and I had gotten a little antsy to get out. Full size image and exposure and processing details are at:

http://jthommes.com/Astro/M67.htm


Megrez II 80 mm APO at f/5.9 (WOFRIII)
Artemis285 (IRB,R,G,B)
G11/Gemini
Guiding: C8 at 1350 mm FL, DSI Pro, K3CCDTools

Earlier 2005 image is here:

http://jthommes.com/MiscAstro/Archives/M67.htm


February 24, 2008 11:16 PM Forum: CCD Imaging and Processing/Deep Sky

NGC2170 and NGC 2182

Posted By Jim Thommes
Here is an interesting region in Monoceros. It holds NGC 2170 and NGC 2182 as well as the Monoceros R2 Association. A full size image and exposure / processing details are at:

http://jthommes.com/Astro/NGC2170.htm

WO Megrez II 80 mm APO at f/5.9 (WO FFIII)
Artemis285 (IRB, H-Alpha, RGB)
G11/Gemini
Guiding - C8 at 1350 mm FL, DSI Pro, K3CCDTools

So I have 3-plus hours of exposure in this image. (My typical short view of the heavens.) If you want to see this same area with high quality optics and 24 hours of exposure data, check this image by Russell Croman out:

http://www.rc-astro.com/photo/id1178.html


March 17, 2008 01:42 AM Forum: CCD Imaging and Processing/Deep Sky

Galaxy NGC 3521

Posted By Jim Thommes
Hoowee, I have been out of the astro thing for a month or so now - I have been quite busy attending to some other issues eating up whatever time I have away from work. I haven't been out to observe - I am really missing it, but I did have some unprocessed data from Feb. 9 - NGC 3521.

A full size image and exposure / processing details are at:

http://jthommes.com/Astro/NGC3521.htm
(be sure to click on the image for full size)

Scope - C8 @ f/7.5
Artemis285, LRGB filters
G11/Gemini
Guiding - Megrez II APO at 1350 mm FL, DSI Pro, K3CCDTools

It is amazing how much this galaxy looks like M63 in appearance and structure. For reference, here is a version of M63:

http://jthommes.com/Astro/M63.htm


April 13, 2008 02:08 AM Forum: CCD Imaging and Processing/Deep Sky

Leo Triplett

Posted By Jim Thommes
Hi all,
I haven't posted in a while, but I managed to get out this last new moon. I got some data to process - it's good to be exposing and processing again. This image is an example of what to do when the CSC shows seeing as a solid series of grey blocks (1/5 bad) - you go wide field. The subject is the Leo Triplett.

A full size image and exposure / processing details can be seen here:

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

Megrez II at f/5.3
Artemis285 Astronomik IRB, Edmund Optics Dichroic RGBs
G11 / Gemini
Guiding - C8 at 1350 mm FL, DSI Pro, K3CCDTools

L:R:G:B >> 60:20:20:20

There are some other interesting older images taken with a webcam...

In 2005: http://jthommes.com/Astro/M65-66.htm
Also in 2005: http://jthommes.com/Astro/NGC3628.htm



April 20, 2008 12:55 AM Forum: CCD Imaging and Processing/Deep Sky

NGC 4216 and friends

Posted By Jim Thommes
Here is a galaxy triplet group in Virgo (Virgo Cluster members) - NGC 4216, NGC 4222, NGC 4206 and others. The Full size image and exposure, processing details are at:

http://jthommes.com/Astro/NGC4216.htm
(be sure to click on the image for full size)

Scope - C8 at f/4.8
Artemis285 IR/UV Block and RGB filters
G11/Gemini
Guiding - Megrez II at 1350 mm FL, DSI Pro, K3CCDTools


April 26, 2008 10:12 PM Forum: CCD Imaging and Processing/Deep Sky

M99

Posted By Jim Thommes
Boy oh boy, it is amazing what some wind and less than average seeing can do to these small galaxies. Oh well, it is always fun under the stars. Here is the result of the effort - a kinda soft M99:

http://jthommes.com/Astro/M99.htm

C8 at f/7.5
Artemis285 LRGB filters
G11/Gemini
Guiding - Megrez II at 1350 mm FL, DSI Pro, K3CCDTools

I am thinking that under these conditions I am better off getting more signal with either longer subs, or higher binning, or both. I don't think I got any benefit from a 1x1 bin on the luminance. Or maybe the better choice is to not image these subjects in these conditions.


May 2, 2008 04:03 AM Forum: CCD Imaging and Processing/Deep Sky

Black Eye Galaxy

Posted By Jim Thommes
Greetings
Here is an old favorite - M64. Full size image and exposure / processing details are at:

http://jthommes.com/Astro/M64.htm
(be sure to click on the image for full size)

C8 at f/7.5
Artemis285 LRGB filters
G11/Gemini
Guiding: Megrez II at FL 1350 mm, DSI Pro, K3CCDTools

It is interesting to see an image 4 years ago:

http://jthommes.com/MiscAstro/Archives/M64.htm


May 9, 2008 05:12 AM Forum: CCD Imaging and Processing/Deep Sky

Propeller Nebula

Posted By Jim Thommes
Greetings All,
Here is an image of DWB111 otherwise known as the Propeller Nebula. I framed the object in an orientation that made sense for the object so North is to the right in this image. A full size image as well as exposure and processing details are at:

http://jthommes.com/Astro/DWB111Propeller.htm
(be sure to click on the image for full size)

C8 (203 mm) at f/3.4
Artemis285 Ha RGB
G11/Gemini
Guiding Megrez II at 1350 mm, DSI Pro, K3CCDTools

An earlier image made in 2004 can be seen here:

http://jthommes.com/MiscAstro/Archives/DWB111Propeller.htm


May 13, 2008 06:07 AM Forum: CCD Imaging and Processing/Deep Sky

Sombrero - M104

Posted By Jim Thommes
Well, I have revisited the Sombrero Galaxy. I was getting some good seeing that night and guiding was well behaved so I thought I would give this object a try. I did the luminance on a 2x2 bin in an attempt to get some strong signal - I think this was a good move. I also took a few 1x1 bin. The ole C8 can still catch a few photons.

Full size image and exposure / processing details are at:

http://jthommes.com/Astro/M104.htm
(click on the image for full size)

Scope - C8 at f/7.5
Camera - Artemis285 IRB, RGB filters
G11/Gemini
Guiding - Megrez II at 1350 mm FL, DSI Pro, K3CCDTools

Earlier image from 2004 is here:

http://jthommes.com/MiscAstro/Archives/M104.htm


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