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Posts Made By: Jim Thommes

May 15, 2011 01:15 AM Forum: CCD Imaging and Processing/Deep Sky

M100 and NGC 4312

Posted By Jim Thommes
Here is an image of M100 and NGC 4312. M100 is one of the brighter members of the Virgo Cluster. Image and details are here:

http://www.jthommes.com/Astro/M100.htm


Scope - C8 at f/6.3
Camera - ST8300M
Mount - G11/Gemini

May 25, 2011 02:56 AM Forum: CCD Imaging and Processing/Deep Sky

M41 with WISE IR data

Posted By Jim Thommes
I had recently posted a visible spectrum image of the cluster M41. Now that WISE IR data is available, I wanted to see the M41 region in 4.6 and 12 micrometer IR. It is somewhat interesting to see the otherwise invisible but IR emitting dust and gas around the cluster. I merged the IR data with the visible light image here:

http://www.jthommes.com/Astro/M41.htm#M41-WISE

I made a blink comparison of the straight visible and the visible / IR blend here:

http://www.jthommes.com/Astro/images/M41_IR_Blink.gif

I'm kind of looking forward to the summertime imaging and combining some of this IR data with the visible data I collect.

May 28, 2011 07:39 PM Forum: CCD Imaging and Processing/Deep Sky

M59 and M60

Posted By Jim Thommes
Some may think elliptical galaxies are boring. I guess they are in images. But M59 and M60 are in a somewhat interesting field. Plus they are among some of the more massive elliptical galaxies in the Virgo Cluster. Image and details are here:

http://www.jthommes.com/Astro/M59-60.htm

Scope - C8 at f/6.3
Camera - Artemis285
(only 2.75 hours)

June 12, 2011 07:47 PM Forum: CCD Imaging and Processing/Deep Sky

NGC 5921 - Barred Galaxy

Posted By Jim Thommes
Here is NGC 5921 - a small but nicely formed barred galaxy. I have it in a larger field since it was done at about 1200 mm FL with my C8. Image and details are here...

http://www.jthommes.com/Astro/NGC5921.htm
(click on the image for full size)

Thanks for looking.

Scope - C8 at f/6.3
Camera - ST8300M (Baader RGB filters)

June 18, 2011 04:27 PM Forum: CCD Imaging and Processing/Deep Sky

NGC 6791 - more fun with open clusters

Posted By Jim Thommes
Here are a couple of images of the open cluster NGC 6791. One is with my LRGB data; the second is with the Wide-field Infrared Survey Explorer (WISE) data. The third is a blink comparison between the two. It is interesting to the the one red star to the right emit so heavily in the IR bands.

I have been having fun with the WISE data and combining it into my data. Images and details are here (click on the images for full size views):

Visible Band:
http://www.jthommes.com/Astro/NGC6791.htm

Visible and IR:
http://www.jthommes.com/Astro/NGC6791.htm#NGC6791-WISE
(link to blink comparison is in this view as well)

Blink Comparison:
http://www.jthommes.com/Astro/images/NGC6791_MegFRWO10_Vis-IR.gif

Scope - Megrez II 80 mm refractor at f/5.5
Camera - Artemis285, Astronomik LRGB filters.

June 30, 2011 03:14 AM Forum: CCD Imaging and Processing/Deep Sky

NGC 6946

Posted By Jim Thommes
Here is my latest image of NGC 6946. I saturated kind of heavy - it really is interesting to the the red hue due to the obscuring dust of the milky way. Yet there is some noticeable blue coming through. It would be interesting to see this galaxy from a different vantage that did not have the intervening dust. Image and details are here:

http://www.jthommes.com/Astro/NGC6946.htm

Scope - C8 at f/6.3
Camera - ST8300M

June 30, 2011 03:20 AM Forum: CCD Imaging and Processing/Deep Sky

NGC6939

Posted By Jim Thommes
Here is an interesting Open cluster. It is often imaged in the same field as the galaxy NGC 6946. Here in this image it is doing a solo gig:

http://www.jthommes.com/Astro/NGC6939.htm

This was imaged on my "second" set up while my main imaging scope/camera was sucking in the photons on NGC 6946

Scope - Megrez II 80 mm
Camera - Artemis285

July 6, 2011 03:46 AM Forum: CCD Imaging and Processing/Deep Sky

NGC5965 and NGC 5963

Posted By Jim Thommes
Here is an image field with NGC 5965 and NGC 5963 (and a few other friends).
NGC 5963 spiral arms are pretty faint and I probably needed more time on the
subs, but I was at a semi-dark site with limited time. Image and details are
at:

http://www.jthommes.com/Astro/NGC5965.htm
(click on the image for larger size)

Scope - C8 at f/6.3 (G11/Gemini)
Camera - ST8300M (Baader LRGBs)

July 16, 2011 04:38 AM Forum: CCD Imaging and Processing/Deep Sky

IC 1274 and IC 1275 Region

Posted By Jim Thommes
Here is the IC 1274 and IC1275 region. It is an RGB image blended with H-Alpha and Luminance exposures. Image and details are here:

http://www.jthommes.com/Astro/IC1275-4685.htm
(click on the image for larger size)

Scope - Explore Scientific "Levy" 152 mm Mak-Newt at f/4.8
Camera - ST8300M (Baader LRGB and H-Alpha)

July 19, 2011 03:31 AM Forum: CCD Imaging and Processing/Deep Sky

IC 1311 Region - Ha-RGB

Posted By Jim Thommes
I have always liked imaging in Cygnus. This image is the region around the Cluster/Nebulosity, IC 1311. This is a H-Alpha RGB combination. Image and details are here:

http://www.jthommes.com/Astro/IC1311.htm
(click on the image for full size)

Scope - Explore Scientific "Levy" Mak-Newt 152 mm at f/4.8
Camera - ST8300M (Baader Ha / RGB Filters)

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