Image of the day

Captured by
Douglas Rollain

Lion Nebula SH2-132 - RC71

About Astromart

My Account

New to Astromart?

Register an account...

Need Help?

Posts Made By: Jim Thommes

July 31, 2009 03:18 AM Forum: CCD Imaging and Processing/Deep Sky

Iris in the Dust

Posted By Jim Thommes
Here is NGC 7023 in a somewhat wider field in an effort to try to expose some of the dust in the region. It is processed up a bit high to highlight the dust. This was kind of a fun catch with a simple setup on the humble CG5 Goto mount and a homemade guide scope. A full size image is here:

http://www.jthommes.com/Astro/NGC7023Wide.htm
(click on the image for full rez)

Optic - Zenithstar 66 mm APO at f/4.5
Camera - Artemis285 (Astronomiks IR/UV Blocking filter and RGB filters)
Mount - CG5 GOTO
Guiding - 180 mm FL guide scope, Vesta 690 LE Webcam, K3CCDTools

I also have a 2006 image of the Iris up close:

http://www.jthommes.com/Astro/NGC7023.htm

August 4, 2009 03:25 AM Forum: CCD Imaging and Processing/Deep Sky

M17

Posted By Jim Thommes
This is a popular target this time of year - so here it is again. This image is a combination of OSC and H-Alpha on the old C8. Yes, the C8 still does some imaging for me if you can believe that. Image and exposure details are here:

http://www.jthommes.com/Astro/DSLR/M17.htm

Scope - C8 @f/6.3 (standard schmidt reducer corrector at proper spacing)
Mount - G11/Gemini
Guiding - Megrez II at 555 mm FL, DSI Pro, PHD guiding

August 13, 2009 04:05 AM Forum: CCD Imaging and Processing/Deep Sky

The Blue Dog

Posted By Jim Thommes
Ya know, I don't know what to call this object, so I took the liberty to name it. I'm not so good at pouring through all the catalogs. If any of you could enlighten me on a catalog reference, I would appreciate it. The Dog's eye is HD211300. The image center is (Equatorial 2000: RA: 22h 08m 52s Dec: +73°14'34"). I got the idea to image this from looking through Wikisky. Image and exposure / processing details are at:

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

Scope - Zenithstar 66 mm APO at f/4.5
Camera - Artemis285
Mount - CG5 - Goto
Guiding - Homemage 180 mm FL guide scope, DSI Pro, PHD guiding.

August 22, 2009 12:37 AM Forum: CCD Imaging and Processing/Deep Sky

The Lagoon Nebula

Posted By Jim Thommes
Here is an image of the Lagoon. It has a funny story... As I was taking the last of the Subs (in Ha), I noticed tracking errors. I was a little disappointed and irritated since this was on my G11 mount. I got some pretty good star streaks. I found out when I dismounted the camera, one of the camera wires was as taught as a base fiddle string. As it turns out, I was slowly dragging the laptop across the table with this wire as I was imaging. I shoulda paid more attention, but these days I have two platforms imaging on my few outings each month and my attention is divided.

Well, I threw away some subs and did some star repair and did manage to get an image. I couldn't get the Ha to help me much with finer detail so the image is a bit soft:

http://www.jthommes.com/Astro/DSLR/M8.htm

Optic: C8 at f/6.3
Camera: Canon 350D, OSC and H-Alpha
Mount: G11/Gemini
Guiding: Megrez II at 555 mm FL, DSI Pro, PHD Guiding

August 30, 2009 05:31 PM Forum: CCD Imaging and Processing/Deep Sky

More Cygnus Stuff - LBN 251

Posted By Jim Thommes
This is LBN 251 located at the Northern end of the IC 1318 complex. IC 1311 is just off the frame to the lower right. A full size image can be seen at:

http://www.jthommes.com/Astro/LBN251.htm

Scope - Megrez II 80 mm APO at f/5.2
Camera - Artemis285 Ha, RGB (Astronomik)
Mount - G11/Gemini
Guiding - C8 at 1350 mm FL, DSI Pro, PHD Guiding

September 6, 2009 09:10 PM Forum: CCD Imaging and Processing/Deep Sky

Sagittarius Milky Way

Posted By Jim Thommes
This is a 20 degree FOV image taken with a Tamron AF28-75 mm lens. The region is western Sagittarius - basically pointed at the galaxy center. I wanted to see how this lens would do - it did a bit better than I expected.

You will no doubt recognize a number of the brighter Messier's objects in it. Image and exposure / processing details are at:

http://www.jthommes.com/Astro/DSLR/MilkyWayCenter.htm
Higher resolution can be seen clicking on the image.

Optic - Tamron AF28-75 mm at 60 mm f/3.5
Camera - Canon 350D (Baader ACF modified)
Mount - Celestron CG5 GOTO
Guiding - 180 m FL homemade guide scope, DSI Pro, PHD Guiding

September 25, 2009 03:50 AM Forum: CCD Imaging and Processing/Deep Sky

Dark Nebula - LDN 1158, LDN 1147

Posted By Jim Thommes
I have been enjoying imaging some of the dark and dusty areas of our Galaxy. Here is a pair of Dark Nebulae that are really close to the Iris Nebula. Image and exposure and processing details are at:

http://www.jthommes.com/Astro/LDN1155.htm

Optic - Zenithstar 66 mm APO at f/4.3
Camera - Artemis285 - Astronomik LRGB filters
Mount - G11/Gemini
Guiding - C8 at 1350 mm FL, DSI Pro, PHD Guiding


September 29, 2009 03:45 AM Forum: CCD Imaging and Processing/Deep Sky

M52 and the Bubble

Posted By Jim Thommes
Here is a wide field image with M52 and the Bubble (with a little of NGC 7538). Image and exposure / processing details are at:

http://www.jthommes.com/Astro/DSLR/M52Bub.htm
(click on the image for full resolution)

Optic - Megrez II 80 mm APO at f/6.9
Camera - Canon 350D (Baader ACF modified) ISO 800
Mount - Celestron CG5 Goto
Guiding - Homemade 42mm 108mm FL guide scope, DSI Pro, PHD Guiding

October 9, 2009 03:56 AM Forum: CCD Imaging and Processing/Deep Sky

Double Cluster

Posted By Jim Thommes
Here is a quick shot of the Double Cluster. Image and exposure / processing details are at:

http://www.jthommes.com/Astro/DSLR/DoubleCluster.htm

Optic: Megrez II APO at f/6.9
Camera: Canon 350D (Baader ACF modified) ISO 800 (16 x 3 minutes)
Mount: Celestron CG5 - Goto controls
Guiding: Home made 180 mm FL guide scope, DSI Pro, PHD Guiding

October 15, 2009 04:01 AM Forum: CCD Imaging and Processing/Deep Sky

Cederblad 214

Posted By Jim Thommes
Here is Cederblad 214. Some images of this region are a wider view with the full NGC 7822 and Cederblad complex. This image is just the close up of Cederblad. Image and exposure / processing details are at:

http://www.jthommes.com/Astro/NGC7822-CED-214.htm

Optic - Zenithstar 66 at f/4.4
Camera - Artemis285, Atik filter wheel, Astronomik Ha (13nm) RGB
Mount - G11/Gemini
Guiding, C8 at 1350 mm FL, DSI Pro, PHD guiding

Funding Member

Sponsors


View all sponsors

Search